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; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 48f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 58a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 59c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 60a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 64b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 65b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 68a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 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 /** 679e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 680e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 681e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 682e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 683e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 684e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 685e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 686e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 735e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 736e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 737e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 738e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 741e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 742e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 743e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 744e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 745e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 746e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 747e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 748e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 749e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 750e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 80320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 80420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 809d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 810d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 811df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 812d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 813d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 814d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 815d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8174296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8184296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8194296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8204296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 824d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 825d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 83289935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 83389935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 842d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 848539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 849539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 85114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 94614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 985a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 986a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 987a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 988a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 989a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 990a798170f2abe198f806b12dd904830bc25257525Adam Powell } 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 99914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 103114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1050bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 105429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10585bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10595bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10615bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 106214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 10675bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 10745bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1075bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 107729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 10795bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10805bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1081f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 108514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 109129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 109629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1099bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1100bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1101bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 110729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 111029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 111529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 111629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 111729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 111829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 111929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 112029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 112129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 112229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 112329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 112429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 112529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 112629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 112729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 112829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 115714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11882bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11892bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11914ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11924ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 124920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 125020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 125120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 125320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 125516bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 125620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 125720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 125920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 126120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 127120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 127220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 127320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 127420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 127520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 127620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 127720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 127820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13420a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1345a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 13464e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 13474e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 13484e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 13494e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 13504e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1351d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1352d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1353d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1354d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 13559c3e0e68260fe50456996d75304b73054cbde94aalanv return; 13564e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1357d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1358d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13594e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13634e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13648a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13658a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13668a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13678a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13688a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13698a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13708a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13718a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13728a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13738a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1374fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1375fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1376fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1377fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1378fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1379fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1380fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1381a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1382a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1383a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1384a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1385a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 138648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 138748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 138848d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1389a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1390a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1391fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1392a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1393a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1394a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1395a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1396a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1397a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1398fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1399a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1400a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1401a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1402a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1403a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1404a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 140548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 14068a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14078a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14726bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1528a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 15292614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1530f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 153114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1551a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 15522614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1553f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 155443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 155543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 155614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 155743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 155843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 155943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 156043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 156114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1562f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1574a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15752614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1576f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 157743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 157843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 157943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 158043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 158143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 158214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1594f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1595f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1614f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1624e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1625e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1626e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1627e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1628e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1629e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1630e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1631e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1632e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1633e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1634e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1635e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1636e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1637e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1638e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 163999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16507becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 16517becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 16527becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 16537becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 16547becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 16557becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 16567becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 16577becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 16587becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 16597becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 166299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 166399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 166499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 166599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 166699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 166799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1686a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1687a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16889a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 16899a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 16909a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16919a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 169214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 16939a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 16949a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 16959a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 16969a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16979a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 16989a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16992614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1700f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1701335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1702335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1703335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1704335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1719e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1728079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1730e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1740f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1741f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1743f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1744f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1745f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 17472614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 17482614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1749a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1750a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1751a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1752a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1753a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1759d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 17650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1805b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1806b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1807b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1808b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1809b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1810b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1811b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1830161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1832e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1838079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 18830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 19030b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 19040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 19050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 19100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 19110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 19120b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 19130b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1962da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1963da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1964da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1965da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1966ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1967da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1968da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1969ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1970da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1971da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1974d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1975d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1976d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1977d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1982f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1983f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1984f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1985f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1986f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1987f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1988f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 19892c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 19902c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 19912c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 19922c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1993f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2007d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2008d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2009d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2010d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2011d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2012d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2013d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2014d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2020d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2021d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2022d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 212521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 212621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 21274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 213021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 213121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2134539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2135539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2136539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2137539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2138539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21454213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21464213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21474213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21484213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2150079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 215421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2155a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2156a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 21604213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21614213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21624213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21634213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21644213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2170aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2171aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2172aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2173aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2174aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2175aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2176aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2177aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2178aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2179aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2180aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2181aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2182aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2183aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2184c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2185c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2186c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2187c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2188b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2189b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2190b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2191c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2192c1d7e770e123adfa992d013fa294693d077cbc78alanv 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2196c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2197c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2198c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2199c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2200c1d7e770e123adfa992d013fa294693d077cbc78alanv 2201c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22029c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 22039c3e0e68260fe50456996d75304b73054cbde94aalanv 22049c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22059c3e0e68260fe50456996d75304b73054cbde94aalanv return; 22069c3e0e68260fe50456996d75304b73054cbde94aalanv } 2207c1d7e770e123adfa992d013fa294693d077cbc78alanv 22089c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 2209c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2210c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2211c1d7e770e123adfa992d013fa294693d077cbc78alanv 22129c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 22139c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 22149c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 22159c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 22169c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 22179c3e0e68260fe50456996d75304b73054cbde94aalanv } 22189c3e0e68260fe50456996d75304b73054cbde94aalanv 22199c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2220c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2221c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2222c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2223c1d7e770e123adfa992d013fa294693d077cbc78alanv 22249c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2225c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2226c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2227c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2228c1d7e770e123adfa992d013fa294693d077cbc78alanv 2229c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2230c1d7e770e123adfa992d013fa294693d077cbc78alanv 2231c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2232c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2233fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2234fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2235fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2236fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2237c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22389c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2239c1d7e770e123adfa992d013fa294693d077cbc78alanv 22409c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22419c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2242c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2243c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2244c1d7e770e123adfa992d013fa294693d077cbc78alanv 22459c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 22469c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2247fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2248fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2249fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2250c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2251c1d7e770e123adfa992d013fa294693d077cbc78alanv 2252c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 22539c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 22549c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 22559c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 22569c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22579c3e0e68260fe50456996d75304b73054cbde94aalanv } 22589c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2259fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 22609c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 22619c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 22629c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22639c3e0e68260fe50456996d75304b73054cbde94aalanv } 22649c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2265fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2266fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2267c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2268c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2269fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2270fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2271fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2272c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2273c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2274fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2275c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2276c1d7e770e123adfa992d013fa294693d077cbc78alanv 2277fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2278c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2279c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2280c1d7e770e123adfa992d013fa294693d077cbc78alanv 2281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2282079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2283079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2284079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2285079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2288e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2289e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2290e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2297a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2298079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2299079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 234020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 234120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 234220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 234320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 234420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 234520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 234620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 234720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 234820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 234920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 235020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 235120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 235220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 235320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 235420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 235520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 235620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 235720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 235820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 235920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 236020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 236120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 236220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 236320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 236420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2370d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2403079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2447079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2465df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2466df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2467df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2468df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2472079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2476ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2477ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2478ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2479ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2486df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2487df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 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 public void setScrollIndicators(View up, View down) { 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2507079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2508079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2509079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2510079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2511079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2512079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2513079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2514079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2515079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2516079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2520079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2563e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2564e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2565e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2566e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2567e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2568e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 25730e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 25740e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 25750e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 257882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 257982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 258082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 25816a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 25826a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 25836a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 25846a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 25856a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 258682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2587b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25941f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 25951f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 25961f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 259721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 259821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 259921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26010e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 26020e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 26039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 26040e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 260682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 260782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 260882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 260982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 261082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 26111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 26131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 26141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 26151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 26161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 26181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 26191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 26201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2621d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2622d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2623d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2624d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2625d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2626d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 26274032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2628d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2629d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2630d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2631d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2632d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2633d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2634d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2635d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2636d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2637d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2638d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2639d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2640d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2641d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2642b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2653670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2654670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2655670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2656670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2657670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 26584032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 26594032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 26604032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 26630fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2666458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2667670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 267697566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 27220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2740005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2741005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2742005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2743005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2744005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 27457890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 27467890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 27477890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 27487890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 27497890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 27507890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28018350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 28051e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 28061e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 28081e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2833fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2834fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2835fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2836fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2837fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2838fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2839fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2840fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2841fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2842fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2843fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2844fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2845fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2846fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2847fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2872df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2873df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2874df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2875df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2876df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2881dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2882dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2883dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2884df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2885dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2887dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 288945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 289045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 289145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 289245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2896dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2963079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2964079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2965e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 300178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 300678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 300778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 300878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 300978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 301078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 301178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 301278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 302813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 302913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 303013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 303113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 303278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 303978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 304078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 304178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 304278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 304378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 304478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 304578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 304678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 304778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 304878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 304978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 305278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 305378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 305478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 305578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 305778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 305878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 305978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 306078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 306178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 306278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 306378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 306478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 306578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 306678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 306778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 306878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 306978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 307078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 307178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 307278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 307378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 307478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 307578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 307678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 307778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 307878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 307978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 308078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 308178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 308278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 308378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 308478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 308578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 308678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 308778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 308878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 308978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 309178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 309278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 309378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 309478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 309578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 309678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 309878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 310078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 310178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 310278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 310378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 310478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 310578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 310678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 311078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 311178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 311278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 311378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 311478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 311578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 311978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 312078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3121a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 312278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 312378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 312478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 312578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 312678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3127a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 312878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 313278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 313478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 313678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 313778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 315178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 315778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 316378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3165a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 316978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3171a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 317778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 31789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 31799d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 31809d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 31839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 31849d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32151e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32224032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32234032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32244032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 32280fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3238dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3239dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3240dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3241dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3242dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3243dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 32441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 32451fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 32461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 32471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 324828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 324928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 325028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 325128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 325228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 325328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 325428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 325528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 326282f3495b146b267f3786997752cef25310176349Romain Guy 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 326713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 32754032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32764032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32774032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3279044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3280637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3281637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3282637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3283044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3287637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3289637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3291637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3293637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3294637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 32950a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 32960a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 32970a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3298637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3299637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3306637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3307637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3310637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33139d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 331479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 33159d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3320637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3328fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3329fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3330fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3331fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3332fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3333fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 33382585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 33392585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 33402585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 33412585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 33422585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 33434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 33446f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 33456f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 33466f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 33476f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 33486f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 33496f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 33506f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 335778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3360637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 336178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3374498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3375498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3376498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3377498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3378498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3400005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3401005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3405079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 34106198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3413d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3414d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3415d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3416d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3417d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3419079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3423d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3426d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3427d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3428d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3429005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3430005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3431079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3434005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3435d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3439079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 34426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 34436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3445637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3447637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3448637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 34496198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 34516198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 34526198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34536198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 34546198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 34556198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3456637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 345721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 345821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 34686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 34696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 34706198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 34716198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 34724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34736198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3474f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3475f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3476f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3477d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3478d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3479d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 34804032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 34814032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 34824032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 34836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 348979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3490637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3491637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 35100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3513637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 35180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 352413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 35254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 35351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 35361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 35371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 35381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3548637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3549637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3551637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3555637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3556637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3557637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3559637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 356913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 35774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 35814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 35824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 35834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 35844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 35854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 35864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 35874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 35884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 35894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 35904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 35924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35949bc30d31322848d61f518c1db43544988faaba8fAdam Powell 35959bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 35969bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 35979bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 35989bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 35999bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 36009bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 36019bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 36029bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 36039bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 36049bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 36059bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 36069bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 36079bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 36089bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 36099bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 36109bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 36119bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 36129bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 36139bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 36149bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36210a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 36220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 36230a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 36240a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 36250a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 36260a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 36270a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 363233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 363333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 363433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 363533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 363633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 363733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 363833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 363933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3640275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 364133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 364233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 364933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 365033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 365133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 365807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 365907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 366007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36629d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 36639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3664a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 36669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3667a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 367307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 367407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 367507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 36799d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 36809d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3681e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3682a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3683637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 36849d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3685a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3686a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3690637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3692637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3693637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3694637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3696637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3697637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3698637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 370507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 370607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 370707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 370807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 370907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 371007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 371107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 371207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 371313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 371413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 371513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 371613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 371713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 371813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 371913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 372013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 372113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 372213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 372313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 372413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 372513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 372613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 372713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 372813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 372913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 373013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 373113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 373213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 373313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 373413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 373513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 373613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 373713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 373813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 373913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 374013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 374113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 37460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 37481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 37491fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 37501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 375128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 375228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 375328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 375428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 375528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 375628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 375728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 375828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 376879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 37754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 37764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 37774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 377979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 379113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 379213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 379379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 37944b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 37954b4f40f84e72579417604143e5f42115769649b8Romain Guy } 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 38022585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 38032585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 38042585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 38052585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 38062585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 38074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 380813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 380913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 381078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 381813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 38214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 382213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 38284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 38294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 38304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 38374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 38384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 38394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 38404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 38414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 38424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 38434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 38444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 38454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 38464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 38484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 38494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 38850046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3907d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3908d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3909d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3910d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3912d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3913d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3914d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3915d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3916d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3917d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3918d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3919b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3920b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3921d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3922d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3923d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3924d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3925d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3926b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3927d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3928d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3929d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3930d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3931d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3932d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 393379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 393779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 39400b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 39441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39521cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 39531cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 39541cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 39551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39621fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3965e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 39700b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 3971044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3972044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39751fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3983637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3984637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3985637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3986637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3987637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3988637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39904032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 39914032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 39924032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 39934032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 39944032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39971fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40000b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 40030b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 40061fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4009d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 401279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4013d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 401421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 401521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 401621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4017d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 40185e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 40195e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 40205e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 40215e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 40225e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4023d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4024d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4025d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4026d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 403079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 403179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4032d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4035d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4036d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4037d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4038d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4039d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 40417f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 40427f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 40437f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 40447f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 404579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 404679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 404779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 404879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4060637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4061637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4074d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4078d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 40879d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 40889d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4092637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40963cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 40973cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 40983cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 41039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 41051fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4114d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4128044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4129044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4132044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4133044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4134044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4135044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4136044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4137044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4138044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4139044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4140044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4141044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4142044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4143044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4158e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 41594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4164e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 41654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 417152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4172e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4173e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 41744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4179e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 41804032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 41814032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4182aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4183aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4184161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4185aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4186aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4187aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4188161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4189aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4190aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4191aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4192e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4193e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4194e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4195e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4196e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4197e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4199e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42014bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42020061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42030061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 42040061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 42060061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 42070061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42100061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42190061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 42224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42231fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4226e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 42274032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42284032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4234aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4235aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4236161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4237aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4238aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4239aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4240161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4241aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4242aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4243aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4244e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4245e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4246e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4247e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4248e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4249e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4251e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42534bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42540061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42550061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42620061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4270458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42710061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 42780061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4281458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42880061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4290458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42970061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43011fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4303e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4304e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4305322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4306322171b333a1c796fcc1428a96ea1d854a3881faErik } 4307322171b333a1c796fcc1428a96ea1d854a3881faErik 4308aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 43094032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43104032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4311aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4312aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4313aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4314161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4315aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4316aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4317aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4318161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4319aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4320aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4321aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4322aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4323aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4324aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4325aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4326aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4327aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 43281fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 43291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 43300061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4331e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4332e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4333e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4334e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4335e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4336e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4337371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4338e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 43394bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43400061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 43410061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 43420061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 43430061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4344e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4345e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 43460061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 43470b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4348e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4349e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4350e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4351371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 43524ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 43530b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 43540b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4355371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4356234a5715309ea74757780aff6123e3144efb5b69Adam Powell 43571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4358e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4359e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4360e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4361e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4362e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4363e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4364e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4365e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4366e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4367e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4368e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4369e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4370e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4371e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4372e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4373e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4374e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4375e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4376e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4377e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4378e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4379e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4380e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4381e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4382e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4383e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4384e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4385e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4386e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4387e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4388e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4389e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4390e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4391e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4392e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4393e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4394e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4395e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4396e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4397e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4398e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4399e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4400e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4401e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4402e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4403e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4404e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4405e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4406e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4407e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4408e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4409e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4410e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4411e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4412e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4413e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4415458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4417e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4418458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 44214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 44264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 44280b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44290b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4431458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4432458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44331fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4436458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4438458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 44411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 44421fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4443458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 44450b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4446458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4447458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 44487e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 44491fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4456029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 44574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4458029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4459029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4460458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4461458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4463458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4464458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4465458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44661fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4469458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4470458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4471458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4472458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 44731fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 44747e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4475458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 44760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4477458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44801fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 44830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 44970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 44980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44990b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 45011fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 45021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45040b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45087e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 45091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4520458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45230b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45311fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45337e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 45340b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 45351fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4536458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45371fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 45400b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4546e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4547234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4548234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 45490b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4550234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4551234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4552e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4553371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4554234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4555234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4556e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4557371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4558e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 45594032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4560e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 45614032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 45624032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 45634032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 45644032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 45654032252c997be9f5d013054dc23ace855007b3a5Adam Powell 45664032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 45674032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 45684032252c997be9f5d013054dc23ace855007b3a5Adam Powell 45694032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 45704032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 45710b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 45720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 45730b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 45741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4575e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 45760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 45770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 45780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 45791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4580e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4581e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4582e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4583234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 45840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 45850b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 45860b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4587e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4588e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4589e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4590e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 45984bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 45994bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 46004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 46014bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 46024bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 46034bede9e425875542976a422222510fa4056a8339Romain Guy */ 46044bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 46054bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 46064bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 46074bede9e425875542976a422222510fa4056a8339Romain Guy } 46084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 46094bede9e425875542976a422222510fa4056a8339Romain Guy } 461021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 461121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 461221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 461321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 46144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 461521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 461621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 461721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 461821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 461921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 46204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 46214bede9e425875542976a422222510fa4056a8339Romain Guy /** 4622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4627458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4632322171b333a1c796fcc1428a96ea1d854a3881faErik 4633322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4634322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4635322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4636322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4637322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4638322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4639322171b333a1c796fcc1428a96ea1d854a3881faErik * 4640322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4641322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4642322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4643322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4644322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4645322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4646322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4647322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4648322171b333a1c796fcc1428a96ea1d854a3881faErik } 4649322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4650322171b333a1c796fcc1428a96ea1d854a3881faErik } 4651322171b333a1c796fcc1428a96ea1d854a3881faErik 4652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4653e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4654e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4655e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4656e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4657e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4658e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4659e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4660e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4661e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4662e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4663e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4664e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4665e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4666e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4667e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4668e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4669e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4670e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 46744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4686458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 46920b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 46930b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 46940b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 46950b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46994032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4700299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 47014032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 47024032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 47034032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 47044032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 47054032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 47064032252c997be9f5d013054dc23ace855007b3a5Adam Powell 470779303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 47084032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4709aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 47104032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 47114032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 47124032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 47134032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 47144032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47154032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 47160046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 47170b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4718299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4721499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4722499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4723499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4724499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4725499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4726499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4727499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4728499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4729499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4730499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4731499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4732499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4733499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4734499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4735499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4736499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4737499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4738499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4739499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4740499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4741499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4742499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4743499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4744499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4745499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4746499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4747499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4748499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4749499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4750499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4751499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4752499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4753499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4754499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4755499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4756499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 47589d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 47610211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 47669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 47679d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 47689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 47699d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 47709d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 47719d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 47729d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 47739d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 47749d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 47759d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 47779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 47789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 47806dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 47819d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 47829d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4793458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4798458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4806bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4807bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4808bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4809bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4810bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4811bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4812bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4813bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4814bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4815bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4817bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4818bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4838bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4843bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 48480a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 48490a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 48500a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 48510a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48530a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4857458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4859029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4860029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4861029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4862029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 48718c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 48728c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 48738c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 48748c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4883079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 48888c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 48898c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 48908c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 48918c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4901079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4913539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4915539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 49169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 49179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 49189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 49191fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 49209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49219d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4933029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 49342a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 49352a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4936079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4937079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4938079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4939079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4940079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4941079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 49422a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4943079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4944079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4945029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4946029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 49504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4986ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4987ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4988ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 50174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5037637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50464e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 50474e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 50488d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 50498d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 50504e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 50518d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5052becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5053becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5054becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 50554e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 50568d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 50574e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 51534032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 51544032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 51554032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 51623c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 517314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 517414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 517514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 517614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 517714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 517814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 517914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 518014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 518114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 518214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 518314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 518414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 518514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 518614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 518714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 518814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 518914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 519014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 519114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 519214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 519314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 519414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 519514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 519614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 519714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 519814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 519914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 520014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 520114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 520214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 520314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 520414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 520514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 520614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 520714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 520814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 520914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 521014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 521114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 521214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 521314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 521414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 521514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 521614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 521714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5221ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5222ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 522414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 522514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 522614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5228539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5229539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5230539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 523114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 523214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5239e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52410785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5244da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5245da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5246da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5247da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5248da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5249da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 52500785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5251ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 52520785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 52530785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5254ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5255ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 52560785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 52570785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 52580785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 52590785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 52600785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 52610785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 52620785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5355e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 5356079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 536043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 536143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 536243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 536343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 536443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 536543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 536643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 536743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 536843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 536943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 537043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 537143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 537243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 537343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 537443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 537524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 537643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 537743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5381d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 53934df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5394b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5400b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 540424443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5407b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54534e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 54544e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 54554e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 54564e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 54574e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 54584e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 54594e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 54624e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 54634e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5484b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 550083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 55018d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 55028d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5503b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5504b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5505b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5506b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 550783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 550883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 550983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 551083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 551183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 551283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5518cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5522b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5527105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5549b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5550b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5551b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5552b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5553c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5554c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5555c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5556c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5557c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 55581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 55591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 55601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 55611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 55621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 55641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 55651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 55661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 55671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 55691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 55711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 55721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 55731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 55741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 55751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 55761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 55771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 55781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 55791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 55811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 55831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 55851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 55871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 55881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5589c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 55901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 55911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 55931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 55951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 55961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 55971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5598c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5599c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5600b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5602b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5603b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5604b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5605b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5606b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5607b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5608b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5609b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5611b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 56204df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 56214df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5624b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5625b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5626b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5627b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5628b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5629105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5640d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 567224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 567743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 56861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 56931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 56941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5697c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 57061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 57241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5737aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5738aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5739aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5740aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5741aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5742aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57885be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 57895be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 57905be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 57915be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 57925be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 579752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 579852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 579952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 580052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 580152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 580252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 580352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 580452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58137b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 583213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5836c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 585413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5855499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5856499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5857499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5858499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5859499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 58609b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 58619b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 58623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 58633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 58643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 58653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 58663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 58673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 58683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 58699b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 58702148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 58719b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5872499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5873335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 5874335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 5875335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 5876499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5877499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5878499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5879a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 5880a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * 5881a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @param handler The OnClickHandler to use when inflating RemoteViews. 5882a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * 5883a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @hide 5884a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen */ 5885a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 5886a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 5887a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // service handling the specified intent. 5888a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen if (mRemoteAdapter != null) { 5889a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 5890a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 5891a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 5892a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 5893a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen /** 58942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 58952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 58962148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 58972148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 58982148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 58992148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 59002148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 59012148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5902499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5903499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 590416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5905499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5906499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 59072148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 59082148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 59092148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 59102148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 591116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5912fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5913fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 591416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5915499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 591616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5917499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5918499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5919499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5920499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5921499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5922499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5923fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5924fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5925fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5926fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5927fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5928499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5929499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5930499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5931b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5932b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 5933b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 5934b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 5935b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 5936b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 5937b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5938b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5939b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 5940b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 59419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 59429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 59439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 59449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 59479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 59499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 59509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5955b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5956b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5957b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5958b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5959b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5960b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5961b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5962b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5963b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5964b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5965b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5966b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5967b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5968b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5969b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5970b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5971b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5972b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 59739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6000a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 6001a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 6002a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6003a798170f2abe198f806b12dd904830bc25257525Adam Powell 6004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 60479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 60489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 60509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 60529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 60539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6054bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 60559bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 60569bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 60579bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 60589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 60599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60604df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 60614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 60624df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 60634df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 60644df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 60654df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6066bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 60674df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 60684df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 60690bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 60700bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 60710bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 60720bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 60730bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 60740bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 60750bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 60760bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6077bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 60780bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 60790bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6080079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6081079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6082079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6083079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6084079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6085079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6086079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6087539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6088539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6089539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6090539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6091539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 61169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 61179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 61199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 61219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 61229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 61239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 61329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 61339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 61349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 61359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 61409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 61419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 61449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 61469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 61499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 61509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 61519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 61529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 61549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 61579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 61599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 61619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6164539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6165539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6166539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6167539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 61689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 61699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 61709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 61749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 61789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 61799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 61809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6182f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6183f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6184f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6185f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6186f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6187f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6188f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6189f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6190f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6191f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6192f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6193f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6194f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6195f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6196f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6197f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6198f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6199539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6200539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6201539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6202539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6203539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6204539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6205f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 62060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 62089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 62239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 62249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 62259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 62269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 62279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 62289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6231539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6232539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6233539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 62389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 62409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 62419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 62429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 62449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 62459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 62469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 62489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 62519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 62529c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 62539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 62549c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 62559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 62569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 62574df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 62589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 62649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 62659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 62679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 62689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 62709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 62719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 62739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 62749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 62789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6280539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6281539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6282539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6283539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6284539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6285539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6286539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6287539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6288539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6289539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6291539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6293539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6294539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6295539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6296539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6297539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6298539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6299539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6300539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6301539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6307079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6311079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6318539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 63199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 63219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6322079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 63239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 63249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 63259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6328539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6329539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 63319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 63329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6333539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6334539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6335539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6336539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6337539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6338539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6339539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6340539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6341539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6342539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6343539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6344539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6345057a585fba01d92c38f27a8c080622dfd0c6f556Adam Powell scrap.dispatchStartTemporaryDetach(); 6346539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 63479b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 63489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6351539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 63529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 63549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 63569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6358c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 63599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 63609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 63619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6365539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6366539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6367539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6368539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6369539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6370539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6371539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6372539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6373539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6374539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6375539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6376539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6377539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6378539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 63799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 63809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 63829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 63849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 63859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 63879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6388a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 63899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 63909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6391079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6392079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6393079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 63949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6397539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6398539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6400539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6401539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 64029b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 64039b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6404539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6405539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6406539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6407539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6408539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6409539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 64109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 64119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6416a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6417079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6420c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 64229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 64329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 64339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 64359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 64369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 64409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 64419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6447bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6448bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6449bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6450bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6451bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6452bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6453bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6454bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6455bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6456bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 64579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 64619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 64639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 64649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 64659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 64679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 64689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 64699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 64709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 64719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 647452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 647552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 647652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 647752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 647852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 647952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 648052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 648152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 648252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 648352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 648452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 648552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 648652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 648752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 648852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 648952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 649052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 649152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 649252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6493266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 649452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 649552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 649652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 649752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 649852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 649952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 650052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 650152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 650252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 650352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 650452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 650552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 650652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6508079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6509079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6510079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6511079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6512079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6513079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6514079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6515079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6516079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6517079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6518079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6519079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6520079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6521079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6522079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6523079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6524079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6525079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 65269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6527