AbsListView.java revision 3d15a2b8f43f5b184f8fdcd3661711111bcf4674
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.Parcel; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 32f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.text.InputType; 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; 64f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CompletionInfo; 65f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.CorrectionInfo; 66b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 67f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedText; 68f69913056b8c6000ff0306573a97971702e8d35aRomain Guyimport android.view.inputmethod.ExtractedTextRequest; 69b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 71a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohenimport android.widget.RemoteViews.OnClickHandler; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 73335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 74335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 79d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 80d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 81d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 92f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 96499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 97499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 999d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 100539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 101539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1550a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 25114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 25214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 25314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 25514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 274499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 275499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 276499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 277499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 278539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 279539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 280539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 281539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 282539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2832148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2842148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2852148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2862148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2872148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 298079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 299079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 300079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 301079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 302079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3580211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4141fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 490637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 491637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 49314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 49414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 49514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 49614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 49714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 49814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 544d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 545d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 546d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 547d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 548d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 575d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 577d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5826dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5836dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 584161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 5854296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5864296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 59124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 59224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 59324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 6004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6066dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62389935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62889935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 650da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 651da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 652da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 653da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 654da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 65507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 65607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 658c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 659c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 660c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 661c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 662c1d7e770e123adfa992d013fa294693d077cbc78alanv 6634e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6644e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6654e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 666da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 667b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 668b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 669a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 670b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 671b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 672ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 673ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 674ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 675ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 676ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6790b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6800b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6810b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 682e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 683e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 684e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 685e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 686e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 687e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 688e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 689e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 738e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 741e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 742e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 743e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 744e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 745e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 746e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 747e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 748e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 749e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 750e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 751e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 752e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 753e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 80620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 80720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 812d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 813d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 814df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 815d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 818d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 819d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8204296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8214296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8224296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8234296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 827d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 828d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 83589935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 83689935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 845d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 851539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 852539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 85414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 94914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 988a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 989a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 990a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 991a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 992a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 993a798170f2abe198f806b12dd904830bc25257525Adam Powell } 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 100214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 103414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1053bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 105729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 10615bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10625bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio mCheckStates.put(position, checked); 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 10645bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 106514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 10705bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 10775bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio position, id, checked); 1078bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 108029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 10825bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio boolean checked = !mCheckStates.get(position, false); 10835bb4e29aba21bf52873bc242102cdfabd9ec4aaaFabrice Di Meglio if (checked) { 1084f3b8e6fe7825bf31e7824041325ddedc0bd41baeAdam Powell mCheckStates.clear(); 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 108814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 109729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1102bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1103bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1104bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 111029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 111529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 111629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 111729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 111829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 111929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 112029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 112129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 112229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 112329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 112429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 112529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 112629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 112729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 112829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 112929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 113029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 113129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1157f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckStates = new SparseBooleanArray(0); 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1160f4bf0ae2a7c2d9d92c5c8abdb82baa53b4c9ccdaDianne Hackborn mCheckedIdStates = new LongSparseArray<Integer>(0); 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11912bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11922bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11944ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11954ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 12000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 12020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 124920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 125020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 125120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 125220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 125320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 125420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 125620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 125816bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 125920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 126220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 126420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 127420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 127520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 127620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 127720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 127820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 127920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 128020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 128120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12830ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * If fast scroll is enabled, then don't draw the vertical scrollbar. 12840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12880ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return mFastScrollEnabled; 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 13020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13400ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette mFastScroller.onScroll(mFirstPosition, getChildCount(), mItemCount); 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13450a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1348a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 13494e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 13504e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 13514e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 13524e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 13534e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1354d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1355d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1356d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1357d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 13589c3e0e68260fe50456996d75304b73054cbde94aalanv return; 13594e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1360d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1361d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13634e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13644e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13654e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13664e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13678a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13688a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13698a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13708a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13718a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13728a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13738a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13748a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13758a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13768a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1377fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1378fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1379fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 138080943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1381fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1382fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1383fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 138480943d8daa6ab31ab5c486d57aea406aa0730d58Svetoslav Ganov info.setScrollable(true); 1385fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1386a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1387a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1388a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1389a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1390a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 139148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 139248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 139348d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1394a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1395a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1396fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1397a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1398a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1399a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1400a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1401a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1402a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1403fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1404a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1405a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1406a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1407a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1408a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1409a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 141048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 14118a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14128a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14135b578daac9cea174b15fcd13528270270aadd8a2Svetoslav /** @hide */ 14145b578daac9cea174b15fcd13528270270aadd8a2Svetoslav @Override 14155b578daac9cea174b15fcd13528270270aadd8a2Svetoslav public View findViewByAccessibilityIdTraversal(int accessibilityId) { 14165b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (accessibilityId == getAccessibilityViewId()) { 14175b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return this; 14185b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14195b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // If the data changed the children are invalid since the data model changed. 14205b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // Hence, we pretend they do not exist. After a layout the children will sync 14215b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // with the model at which point we notify that the accessibility state changed, 14225b578daac9cea174b15fcd13528270270aadd8a2Svetoslav // so a service will be able to re-fetch the views. 14235b578daac9cea174b15fcd13528270270aadd8a2Svetoslav if (mDataChanged) { 14245b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return null; 14255b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14265b578daac9cea174b15fcd13528270270aadd8a2Svetoslav return super.findViewByAccessibilityIdTraversal(accessibilityId); 14275b578daac9cea174b15fcd13528270270aadd8a2Svetoslav } 14285b578daac9cea174b15fcd13528270270aadd8a2Svetoslav 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14936bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1549a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 15502614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1551f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 155214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1572a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 15732614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1574f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 157543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 157643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 157714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 157843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 157943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 158043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 158143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 158214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1583f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1595a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15962614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1597f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 159843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 159943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 160043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 160143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 160243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 160314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1615f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1616f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 16218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1637f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1647e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1648e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1649e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1650e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1651e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1652e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1653e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1654e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1655e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1656e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1657e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1658e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1659e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1660e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1661e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 166299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16737becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 16747becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 16757becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 16767becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 16777becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 16787becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 16797becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 16807becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 16817becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 16827becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 168599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 168699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 168799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 168899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 168999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 169099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1710a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17119a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 17129a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 17139a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17149a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 171514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 17169a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 17179a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 17189a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 17199a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17209a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 17219a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17222614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1723f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1724335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1725335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1726335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1727335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1742e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1751079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1753e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1762f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1763f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1764f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1765f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1766f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1767f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1768f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1769f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 17702614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 17712614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1772a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1773a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1774a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1775a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1776a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1781d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1782d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 17880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1828b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1829b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1830b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1831b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1832b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1833b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1834b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1853161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1855e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1861079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 19260b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 19270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 19280b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 19330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 19340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 19350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 19360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 19518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 19528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette return top < mPaddingTop ? -(top - mPaddingTop) / fadeLength : fadeEdge; 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 19698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final float fadeLength = getVerticalFadingEdgeLength(); 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 19718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1985da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1986da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1987da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1988da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1989ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1990da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1991da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1992ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1993da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1994da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1997d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1998d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1999d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2000d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2005f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2006f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2007f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2008f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2009f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2010f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2011f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 20120ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette 20132c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 20142c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 20152c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2016f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2030d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2031d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2032d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2033d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2034d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2035d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2036d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2037d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2043d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2044d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2045d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 214821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 214921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 21504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 215321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 215421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2157539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2158539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2159539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2160539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2161539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21684213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21694213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21704213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21714213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2173079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 217721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2178a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2179a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 21834213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21844213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21854213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21864213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21874213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2193aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2194aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2195aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2196aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2197aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2198aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2199aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2200aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2201aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2202aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2203aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2204aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2205aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2206aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2207c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2208c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2209c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2210c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2211b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2212b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2213b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2214c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2215c1d7e770e123adfa992d013fa294693d077cbc78alanv 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2219c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2220c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 222150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov public AccessibilityNodeInfo createAccessibilityNodeInfo(View host) { 222250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // If the data changed the children are invalid since the data model changed. 222350776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // Hence, we pretend they do not exist. After a layout the children will sync 222450776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // with the model at which point we notify that the accessibility state changed, 222550776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov // so a service will be able to re-fetch the views. 222650776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov if (mDataChanged) { 222750776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return null; 222850776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 222950776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov return super.createAccessibilityNodeInfo(host); 223050776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov } 223150776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov 223250776863a2a2ed6e4015edc60bacd4f562a907eeSvetoslav Ganov @Override 2233c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2234c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2235c1d7e770e123adfa992d013fa294693d077cbc78alanv 2236c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22379c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 22389c3e0e68260fe50456996d75304b73054cbde94aalanv 22399c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22409c3e0e68260fe50456996d75304b73054cbde94aalanv return; 22419c3e0e68260fe50456996d75304b73054cbde94aalanv } 2242c1d7e770e123adfa992d013fa294693d077cbc78alanv 22439c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 2244c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2245c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2246c1d7e770e123adfa992d013fa294693d077cbc78alanv 22479c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 22489c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 22499c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 22509c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 22519c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 22529c3e0e68260fe50456996d75304b73054cbde94aalanv } 22539c3e0e68260fe50456996d75304b73054cbde94aalanv 22549c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2255c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2256c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2257c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2258c1d7e770e123adfa992d013fa294693d077cbc78alanv 22599c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2260c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2261c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2262c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2263c1d7e770e123adfa992d013fa294693d077cbc78alanv 2264c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2265c1d7e770e123adfa992d013fa294693d077cbc78alanv 2266c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2267c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2268fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2269fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2270fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2271fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2272c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22739c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2274c1d7e770e123adfa992d013fa294693d077cbc78alanv 22759c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22769c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2277c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2278c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2279c1d7e770e123adfa992d013fa294693d077cbc78alanv 22809c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 22819c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2282fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2283fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2284fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2285c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2286c1d7e770e123adfa992d013fa294693d077cbc78alanv 2287c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 22889c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 22899c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 22909c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 22919c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22929c3e0e68260fe50456996d75304b73054cbde94aalanv } 22939c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2294fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 22959c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 22969c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 22979c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22989c3e0e68260fe50456996d75304b73054cbde94aalanv } 22999c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2300fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2301fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2302c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2303c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2304fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2305fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2306fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2307c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2308c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2309fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2310c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2311c1d7e770e123adfa992d013fa294693d077cbc78alanv 2312fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2313c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2314c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2315c1d7e770e123adfa992d013fa294693d077cbc78alanv 2316079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2317079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2318079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2319079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2320079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2323e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2324e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2325e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2332a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2333079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2334079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 237520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 237620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 237720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 237820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 237920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 238020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 238120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 238220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 238320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 238420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 238520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 238620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 238720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 238820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 238920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 239020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 239120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 239220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 239320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 239420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 239520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 239620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 239720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 239820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 239920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2405d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 243474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return (!isInTouchMode()) || (touchModeDrawsInPressedState() && isPressed()); 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2438079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2482079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2500df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2501df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2502df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2503df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2507079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2511ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2512ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2513ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2514ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2521df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2522df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2542079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2543079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2544079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2545079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2546079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2547079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2548079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2549079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2550079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2551079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2555079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2598e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2599e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2600e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2601e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2602e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2603e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26080e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 26090e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 26100e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 261382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 261482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 261582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 26166a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 26176a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 26186a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 26196a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 26206a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 262182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2622b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26291f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 26301f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 26311f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 263221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 263321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 263421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26360e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 26370e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 26389d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 26390e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 264182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 2642bd1dd0d51ae07f4fc5de5ec0004e7e40ed205022Adam Powell if (mAdapter != null && mDataSetObserver != null) { 264382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 264482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 264582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 26461cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26471cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 26481cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 26491cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 26501cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 26511cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26521cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 26531cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 26541cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 26551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2656d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2657d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2658d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2659d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2660d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2661d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 26624032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2663d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2664d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2665d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2666d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2667d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2668d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2669d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2670d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2671d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2672d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2673d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2674d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2675a607223f34d436619132597bc0174223a6611bbbSangkyu Lee mTouchModeReset.run(); 2676d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2677b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2688670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2689670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2690670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2691670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2692670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 26934032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 26944032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 26954032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 26980fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2702670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 271197566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27353a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio @Override 27363a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio public void onRtlPropertiesChanged(int layoutDirection) { 27373a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio super.onRtlPropertiesChanged(layoutDirection); 27383a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 27393a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio if (mFastScroller != null) { 27403a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio mFastScroller.setScrollbarPosition(getVerticalScrollbarPosition()); 27413a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 27423a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio } 27433a1f1e5beaceeca5a53353fc9896202a9cfabf91Fabrice Di Meglio 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 27660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 277229219d963d1ec29ddea3e5814eb82c2aeaccc1acCraig Mautner return getWindowAttachCount() == mOriginalAttachCount; 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2785005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2786005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2787005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2788005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2789005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 27907890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 27917890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 27927890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 27937890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 27947890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 27957890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 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 private class CheckForLongPress extends WindowRunnnable implements Runnable { 28018fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 28258fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28488350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 28521e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 28531e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 28551e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2880fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2881fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2882fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2883fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2884fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2885fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2886fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2887fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2888fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2889fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2890fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2891fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2892fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2893fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2894fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2919df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2920df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2921df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2922df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2923df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2928dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2929dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2930dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2931df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2932dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2934dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 293645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 293745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 293845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 293945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2943dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 30008fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3011079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3012079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3013e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 304678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 304978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 305478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 305578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 305678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 305778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 305878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 305978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 306078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 306174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 306374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 307013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 307113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 307213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 307313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 307478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 308178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 308278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 308378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 308478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 308578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 308678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 308778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 308878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 308978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 309078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 309178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 309578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 309678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 310078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 310178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 310278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 310378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 310478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 310578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 310678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 311078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 311178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 311278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 311378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 311478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 311578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 311978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 312078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 312178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 312278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 312378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 312478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 312678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 312778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 312878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 312978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 313078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 313278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 313378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 313478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 313578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 313678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 313778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 314478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 315778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3163a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3169a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 317878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 317978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 318078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 318278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 318478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 320378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 320478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 320578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 320678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3207a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 320878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 320978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 321078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 321178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 321278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3213a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 321878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 321978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 32209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 32219d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 32229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 322378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 32269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 322778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 323078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 323178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32581e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32654032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32664032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32674032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 32710fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3281dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3282dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3283dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3284dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3285dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3286dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 32871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 32881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 32891fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 32901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 329128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 329228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 329328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 329428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 329528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 329628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 329728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 329828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 330582f3495b146b267f3786997752cef25310176349Romain Guy 330613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33098fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int actionMasked = ev.getActionMasked(); 33108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette switch (actionMasked) { 33118fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_DOWN: { 33128fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchDown(ev); 33138fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33148fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33168fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_MOVE: { 33178fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchMove(ev); 33188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33198fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33209d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 33218fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_UP: { 33228fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchUp(ev); 33238fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33248fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3325e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 33268fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_CANCEL: { 33278fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onTouchCancel(); 33288fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33298fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 3330e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 33318fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_UP: { 33328fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette onSecondaryPointerUp(ev); 33338fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = mMotionX; 33348fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = mMotionY; 33358fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 33368fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 33378fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 33388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 33398fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 33408fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 33418fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33428fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 33438fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3345fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 33468fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case MotionEvent.ACTION_POINTER_DOWN: { 33478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // New pointers take over dragging duties 33488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int index = ev.getActionIndex(); 33498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int id = ev.getPointerId(index); 33508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int x = (int) ev.getX(index); 33518fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(index); 33528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionCorrection = 0; 33538fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mActivePointerId = id; 33548fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionX = x; 33558fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionY = y; 33568fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int motionPosition = pointToPosition(x, y); 33578fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette if (motionPosition >= 0) { 33588fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Remember where the motion event started 33598fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 33608fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionViewOriginalTop = child.getTop(); 33618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mMotionPosition = motionPosition; 33628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette } 33638fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette mLastY = y; 33648fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 3365fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3366e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3368e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette return true; 3369e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3370e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3371e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchDown(MotionEvent ev) { 33723d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mActivePointerId = ev.getPointerId(0); 33733d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 33743d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_OVERFLING) { 33753d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped the fling. It is a scroll. 3376e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3377e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3378e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 3379e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3380e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_OVERSCROLL; 3381e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = (int) ev.getX(); 33823d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionY = (int) ev.getY(); 33833d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mLastY = mMotionY; 3384e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionCorrection = 0; 3385e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mDirection = 0; 33863d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else { 3387e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int x = (int) ev.getX(); 3388e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int y = (int) ev.getY(); 3389e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int motionPosition = pointToPosition(x, y); 33903d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3391e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (!mDataChanged) { 33923d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (mTouchMode == TOUCH_MODE_FLING) { 33933d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // Stopped a fling. It is a scroll. 33943d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette createScrollingCache(); 33953d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mTouchMode = TOUCH_MODE_SCROLL; 33963d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mMotionCorrection = 0; 33973d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette motionPosition = findMotionRow(y); 33983d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette mFlingRunnable.flywheelTouch(); 33993d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette } else if ((motionPosition >= 0) && getAdapter().isEnabled(motionPosition)) { 34003d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // User clicked on an actual view (and was not stopping a 34013d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // fling). It might be a click or a scroll. Assume it is a 34023d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette // click until proven otherwise. 3403e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_DOWN; 34043d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3405e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // FIXME Debounce 3406e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPendingCheckForTap == null) { 3407e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap = new CheckForTap(); 3408e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34093d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3410e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3411e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34122585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34136f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 3414e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionPosition >= 0) { 3415e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Remember where the motion event started 34163d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final View v = getChildAt(motionPosition - mFirstPosition); 3417e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionViewOriginalTop = v.getTop(); 34186f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 34193d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette 3420e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionX = x; 3421e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionY = y; 3422e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mMotionPosition = motionPosition; 3423e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mLastY = Integer.MIN_VALUE; 3424e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34256f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34263d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (performButtonActionOnTouchDown(ev) && (mTouchMode == TOUCH_MODE_DOWN)) { 34273d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette removeCallbacks(mPendingCheckForTap); 3428e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3429e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3430e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3431e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchMove(MotionEvent ev) { 3432e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette int pointerIndex = ev.findPointerIndex(mActivePointerId); 3433e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (pointerIndex == -1) { 3434e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette pointerIndex = 0; 3435e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = ev.getPointerId(pointerIndex); 3436e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3437e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3438e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mDataChanged) { 3439e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Re-sync everything if data has been changed 3440e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // since the scroll operation can query the adapter. 3441e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette layoutChildren(); 3442e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3443e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 34448fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette final int y = (int) ev.getY(pointerIndex); 34458fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 3446e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 34478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DOWN: 34488fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_TAP: 34498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_DONE_WAITING: 34508fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette // Check if we have moved far enough that it looks more like a 345174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // scroll than a tap. If so, we'll enter scrolling mode. 345274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (startScrollIfNeeded(y)) { 345374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette break; 345474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 345574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // Otherwise, check containment within list bounds. If we're 345674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette // outside bounds, cancel any active presses. 34573d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette final float x = ev.getX(pointerIndex); 34583d15a2b8f43f5b184f8fdcd3661711111bcf4674Alan Viverette if (!pointInView(x, y, mTouchSlop)) { 345974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 346074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = getChildAt(mMotionPosition - mFirstPosition); 346174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (motionView != null) { 346274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette motionView.setPressed(false); 346374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 346474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 346574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 346674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_DONE_WAITING; 346774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 346874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 34698fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34708fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_SCROLL: 34718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette case TOUCH_MODE_OVERSCROLL: 34728fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette scrollIfNeeded(y); 34738fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette break; 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3475e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3477e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchUp(MotionEvent ev) { 3478e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3479e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DOWN: 3480e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_TAP: 3481e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_DONE_WAITING: 3482e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int motionPosition = mMotionPosition; 3483e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final View child = getChildAt(motionPosition - mFirstPosition); 348474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (child != null) { 3485e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mTouchMode != TOUCH_MODE_DOWN) { 3486e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette child.setPressed(false); 3487e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3488e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 348974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final float x = ev.getX(); 349074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 349174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (inList && !child.hasFocusable()) { 349274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mPerformClick == null) { 349374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mPerformClick = new PerformClick(); 349474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 3495e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 349674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final AbsListView.PerformClick performClick = mPerformClick; 349774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.mClickMotionPosition = motionPosition; 349874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.rememberWindowAttachCount(); 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 350074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mResurrectToPosition = motionPosition; 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 350274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 350374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 3504e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPendingCheckForTap : mPendingCheckForLongPress); 350574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mLayoutMode = LAYOUT_NORMAL; 350674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 350774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_TAP; 350874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setSelectedPositionInt(mMotionPosition); 350974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette layoutChildren(); 351074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(true); 351174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette positionSelector(mMotionPosition, child); 351274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(true); 351374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mSelector != null) { 351474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette Drawable d = mSelector.getCurrent(); 351574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (d != null && d instanceof TransitionDrawable) { 351674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ((TransitionDrawable) d).resetTransition(); 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 351974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (mTouchModeReset != null) { 352074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mTouchModeReset); 352174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 352274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = new Runnable() { 352374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette @Override 352474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette public void run() { 352574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchModeReset = null; 352674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 352774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette child.setPressed(false); 352874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette setPressed(false); 352974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette if (!mDataChanged) { 353074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 353174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 353274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 353374ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette }; 353474ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette postDelayed(mTouchModeReset, 353574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette ViewConfiguration.getPressedStateDuration()); 353674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else { 353774ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette mTouchMode = TOUCH_MODE_REST; 353874ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette updateSelectorState(); 353974ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } 354074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette return; 354174ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 354274ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette performClick.run(); 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3545e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3546e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3547e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette updateSelectorState(); 3548e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3549e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_SCROLL: 3550e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int childCount = getChildCount(); 3551e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (childCount > 0) { 3552e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int firstChildTop = getChildAt(0).getTop(); 3553e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3554e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentTop = mListPadding.top; 3555e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int contentBottom = getHeight() - mListPadding.bottom; 3556e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFirstPosition == 0 && firstChildTop >= contentTop && 3557e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFirstPosition + childCount < mItemCount && 3558e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom <= getHeight() - contentBottom) { 3559e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3560e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3561e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3562e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3563e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3564e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3565e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) 3566e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3567e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Fling if we have enough velocity and we aren't at a boundary. 3568e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Since we can potentially overfling more than we can overscroll, don't 3569e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // allow the weird behavior where you can scroll to a boundary then 3570e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // fling further. 3571e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity && 3572e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette !((mFirstPosition == 0 && 3573e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette firstChildTop == contentTop - mOverscrollDistance) || 3574e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette (mFirstPosition + childCount == mItemCount && 3575e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette lastChildBottom == contentBottom + mOverscrollDistance))) { 3576e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3577e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3578e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3579e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3580e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3581e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.start(-initialVelocity); 3582e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 35836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 35846198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3585e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable != null) { 3586e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.endFling(); 3587e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3588e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mPositionScroller != null) { 3589e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mPositionScroller.stop(); 35906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3593e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3594e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3595e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3597e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3600e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3601e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3603e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final VelocityTracker velocityTracker = mVelocityTracker; 3604e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3605e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3607e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3608e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (Math.abs(initialVelocity) > mMinimumVelocity) { 3609e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startOverfling(-initialVelocity); 3610e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } else { 3611e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3614e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette break; 3615e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3617e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3620e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3621e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3624e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Need to redraw since we probably aren't drawing the selector anymore 3625e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette invalidate(); 362674ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3627e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3629e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3631e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (PROFILE_SCROLLING) { 3632e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollProfilingStarted) { 3633e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette Debug.stopMethodTracing(); 3634e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollProfilingStarted = false; 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3636e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3638e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mScrollStrictSpan != null) { 3639e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan.finish(); 3640e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mScrollStrictSpan = null; 36414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3642e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 36434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3644e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette private void onTouchCancel() { 3645e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette switch (mTouchMode) { 3646e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERSCROLL: 3647e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mFlingRunnable == null) { 3648e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable = new FlingRunnable(); 36494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 3650e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mFlingRunnable.startSpringback(); 36514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36529bc30d31322848d61f518c1db43544988faaba8fAdam Powell 3653e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette case TOUCH_MODE_OVERFLING: 3654e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette // Do nothing - let it play out. 36559bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 3656e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette 3657e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette default: 3658e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mTouchMode = TOUCH_MODE_REST; 3659e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette setPressed(false); 366074ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette final View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3661e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (motionView != null) { 3662e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette motionView.setPressed(false); 3663e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3664e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette clearScrollingCache(); 366574ded29bd15a80bfc12250520f9595cc1674d4e7Alan Viverette removeCallbacks(mPendingCheckForLongPress); 3666e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette recycleVelocityTracker(); 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette if (mEdgeGlowTop != null) { 3670e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowTop.onRelease(); 3671e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mEdgeGlowBottom.onRelease(); 3672e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette } 3673e7f30dc14dce081058d6739f71ae99abe757fc48Alan Viverette mActivePointerId = INVALID_POINTER; 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36770a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 36780a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 36790a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 36800a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 36810a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 36820a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 36830a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3684637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 368833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 368933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 369033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 369133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 369233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 369333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 369433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 369533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3696275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 369733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 369833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 369933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 370533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 370633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 370733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3710637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3711637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3712637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3713637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 371407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 371507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 371607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 37199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3720a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3721637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 37229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3723a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3725637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 372907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 373007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 373107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37349d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 37359d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 37369d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3737e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3738a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 37409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3741a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3742a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 374907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 375007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 375107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 375207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 375307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 375407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 375507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 375607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 375713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 375813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 375913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 376013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 376113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 376213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 376313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 376413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 376513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 376613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 376713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 376813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 376913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 377013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 377113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 377213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 377313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 377413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 377513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 377613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 377713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 377813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 377913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 378013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 378113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 378213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 378313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 378413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 378513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 37900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 37921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 37931fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 37941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 379528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 379628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 379728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 379828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 379928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 380028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 380128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 380228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 38030ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette if (mFastScroller != null && mFastScroller.onInterceptTouchEvent(ev)) { 38040ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette return true; 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 380979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 38164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 38174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 38184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 382079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 383213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 383313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 383479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 38354b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 38364b4f40f84e72579417604143e5f42115769649b8Romain Guy } 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 38432585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 38442585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 38452585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 38462585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 38472585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 38484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 384913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 385013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 385178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 385913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 38624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 386313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 38694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 38704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 38714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 38784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 38794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 38804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 38814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 38824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 38834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 38844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 38854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 38864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 38874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 38894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 38904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 39260046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3948d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 39498fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 3950d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3951d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3952d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3954d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3955d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3956d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3957d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3958d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3959d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3960d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3961b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3962b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3963d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3964d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3965d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3966d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3967d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3968b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3969d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3970d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3971d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3972d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3973d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3974d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 397579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 397979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 39820b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 39861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 39951cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 39961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 39971cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40041fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4007e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 40120b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4013044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4014044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40171fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40324032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 40334032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 40344032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 40354032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 40364032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4037637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40420b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 40450b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 40481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4051d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 405479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4055d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 405621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 405721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 405821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4059d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 40605e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 40615e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 40625e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 40635e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 40645e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4065d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4066d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4067d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4068d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40718fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 407379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 407479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4075d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4078d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4079d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4080d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4081d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4082d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 40847f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 40857f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 40867f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 40877f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 408879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 408979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 409079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 409179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4117d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4121d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 41309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 41319d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41393cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 41403cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 41413cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 41469d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 41481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4157d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4171044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4172044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4175044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4176044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4177044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4178044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4179044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4180044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4181044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4182044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4183044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4184044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4185044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4186044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41891fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4201e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 42024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4207e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 42084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 421452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4215e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4216e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 42174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4222e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 42234032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42244032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4225aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4226aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4227161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4228aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4229aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4230aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4231161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4232aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4233aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4234aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4235e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4236e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4237e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4238e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4239e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4240e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4242e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42444bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42450061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42460061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 42470061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 42490061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 42500061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42530061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4261458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42620061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 42654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42661fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4269e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 42704032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42714032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4277aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4278aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4279161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4280aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4281aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4282aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4283161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4284aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4285aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4286aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4287e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4288e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4289e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4290e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4291e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4292e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4294e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42964bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42970061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42980061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43050061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43140061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43210061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43310061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43400061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4346e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4347e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4348322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4349322171b333a1c796fcc1428a96ea1d854a3881faErik } 4350322171b333a1c796fcc1428a96ea1d854a3881faErik 4351aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 43524032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43534032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4354aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4355aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4356aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4357161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4358aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4359aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4360aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4361161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4362aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4363aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4364aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4365aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4366aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4367aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4368aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4369aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4370aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 43711fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 43721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 43730061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4374e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4375e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4376e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4377e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4378e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4379e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4380371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4381e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 43824bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43830061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 43840061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 43850061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 43860061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4387e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4388e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 43890061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 43900b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4391e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4392e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4393e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4394371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 43954ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 43960b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 43970b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4398371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4399234a5715309ea74757780aff6123e3144efb5b69Adam Powell 44001fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4401e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4402e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4403e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4404e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4405e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4406e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4407e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4408e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4409e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4410e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4411e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4412e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4413e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4414e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4415e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4416e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4417e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4418e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4419e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4420e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4421e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4422e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4423e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4424e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4425e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4426e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4427e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4428e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4429e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4430e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4431e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4432e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4433e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4434e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4435e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4436e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4437e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4438e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4439e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4440e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4441e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4442e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4443e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4444e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4445e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4446e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4447e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4448e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4449e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4450e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4451e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4452e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4453e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4454e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4455e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4456e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4460e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44618fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4463458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4464458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 44654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4466458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4469458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 44704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44710b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 44720b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44730b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4474458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4475458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44771fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4482458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 44851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 44861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 44890b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 44927e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 44931fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4500029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 45014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4502029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4503029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 45171fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 45187e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 45200b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45241fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 45270b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45361fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 45410b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 45420b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45430b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 45451fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 45461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45480b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4551458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45527e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 45531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4566458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45751fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45777e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 45780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 45791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45811fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 45840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4589458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4590e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4591234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4592234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 45930b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4594234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4595234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4596e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4597371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4598234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4599234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4600e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4601371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4602e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46034032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4604e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 46054032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 46064032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 46074032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 46084032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46094032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46104032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 46114032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 46124032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46134032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 46144032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 46150b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 46160b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46170b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46181fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4619e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 46200b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 46210b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46220b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46231fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4624e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4625e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4626e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4627234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 46280b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 46290b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 46300b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4631e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4632e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4633e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4634e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4636458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4637458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4639458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4641458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 46424bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 46434bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 46444bede9e425875542976a422222510fa4056a8339Romain Guy */ 46454bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 46464bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 46474bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 46484bede9e425875542976a422222510fa4056a8339Romain Guy } 46494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 46504bede9e425875542976a422222510fa4056a8339Romain Guy } 465121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 465221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 465321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 465421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 46554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 465621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 465721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 465821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 465921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 466021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 46614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 46624bede9e425875542976a422222510fa4056a8339Romain Guy /** 4663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4666458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4667458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4673322171b333a1c796fcc1428a96ea1d854a3881faErik 4674322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4675322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4676322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4677322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4678322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4679322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4680322171b333a1c796fcc1428a96ea1d854a3881faErik * 4681322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4682322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4683322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4684322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4685322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4686322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4687322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4688322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4689322171b333a1c796fcc1428a96ea1d854a3881faErik } 4690322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4691322171b333a1c796fcc1428a96ea1d854a3881faErik } 4692322171b333a1c796fcc1428a96ea1d854a3881faErik 4693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4694e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4695e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4696e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4697e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4698e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4699e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4700e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4701e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4702e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4703e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4704e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4705e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4706e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4707e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4708e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4709e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4710e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4711e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 47154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 47330b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 47340b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 47350b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 47360b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47404032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4741299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 47424032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 47434032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 47444032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 47454032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 47464032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 47474032252c997be9f5d013054dc23ace855007b3a5Adam Powell 474879303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 47494032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4750aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 47514032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 47524032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 47534032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 47544032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 47554032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47564032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 47570046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 47580b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4759299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4762499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4763499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4764499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4765499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4766499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4767499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4768499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4769499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4770499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4771499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4772499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4773499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4774499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4775499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4776499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4777499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4778499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4779499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4780499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4781499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4782499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4783499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4784499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4785499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4786499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4787499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4788499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4789499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4790499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4791499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4792499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4793499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4794499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4795499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4796499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4797499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 47999d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 48020211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 48079d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 48089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 48099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 48108fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 48119d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 48129d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 48139d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 48149d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 48159d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 48169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 48179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 48199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 48209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48216dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48226dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48239d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 48249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4848bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4849bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4850bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4851bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4852bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4853bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4854bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4855bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4856bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4857bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4859bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4860bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4880bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4885bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4889637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 48900a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 48910a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 48920a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 48930a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48950a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4901029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4902029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4903029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4904029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 49138c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 49148c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49158c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 49168c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4925079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 49308c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 49318c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49328c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 49338c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4943079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4955539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4957539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 49589d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 49599d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 49609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 49611fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 49629d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4975029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 49762a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 49772a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4978079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4979079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4980079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4981079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4982079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4983079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 49842a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4985079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4986079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4987029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4988029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 49924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5028ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5029ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5030ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 50594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50888fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette 50894e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 50908d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 50918d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 50924e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 50938d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5094becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5095becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5096becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 50974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 50988d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 50994e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 51954032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 51964032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 51974032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 52043c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 521514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 521614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 521714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 521814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 521914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 522014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 522114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 522214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 522314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 522414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 522514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 522614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 522714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 522814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 522914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 523014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 523114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 523214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 523314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 523414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 523514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 523614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 523714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 523814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 523914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 524014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 524114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 524214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 524314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 524414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 524514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 524614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 524714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 524814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 524914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 525114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 525214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 525514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 525614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 525714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 525914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5263ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5264ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 526614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 526714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 526814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5270539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5271539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5272539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 527314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 527414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5281e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52830785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5286da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5287da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5288da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5289da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5290da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5291da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 52920785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5293ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 52940785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 52950785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5296ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5297ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 52980785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 52990785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 53000785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53010785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 53020785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 53030785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 53040785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5397e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 5398079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 540243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 540343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 540443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 540543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 540643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 540743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 540843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 540943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 541043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 541143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 541243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 541343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 541443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 541543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 541643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 541724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 541843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 541943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5423d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 54354df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5436b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5442b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 544624443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5449b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54954e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 54964e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 54974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 54984e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 54994e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 55004e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 55014e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 55044e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 55054e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5526b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 554283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 55438d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 55448d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5545b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5546b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5547b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5548b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 554983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 555083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 555183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 555283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 555383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 555483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5560cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5564b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5569105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5591b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5592b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5593b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5594b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5595c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 55961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 55971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 5598f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mPublicInputConnection = new InputConnectionWrapper(outAttrs); 55991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 5600f69913056b8c6000ff0306573a97971702e8d35aRomain Guy outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 56011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 56021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5603c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5604c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5605b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5607f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private class InputConnectionWrapper implements InputConnection { 5608f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private final EditorInfo mOutAttrs; 5609f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection mTarget; 5610f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5611f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public InputConnectionWrapper(EditorInfo outAttrs) { 5612f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mOutAttrs = outAttrs; 5613f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5614f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5615f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private InputConnection getTarget() { 5616f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) { 5617f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTarget = getTextFilterInput().onCreateInputConnection(mOutAttrs); 5618f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5619f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget; 5620f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5621f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5622f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5623f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean reportFullscreenMode(boolean enabled) { 5624f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since it is 5625f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the "real" one the IME is talking with. 5626f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.reportFullscreenMode(enabled); 5627f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5628f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5629f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5630f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performEditorAction(int editorAction) { 5631f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // The editor is off in its own window; we need to be 5632f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the one that does this. 5633f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (editorAction == EditorInfo.IME_ACTION_DONE) { 5634f69913056b8c6000ff0306573a97971702e8d35aRomain Guy InputMethodManager imm = (InputMethodManager) 5635f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getContext().getSystemService(Context.INPUT_METHOD_SERVICE); 5636f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (imm != null) { 5637f69913056b8c6000ff0306573a97971702e8d35aRomain Guy imm.hideSoftInputFromWindow(getWindowToken(), 0); 5638f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5639f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return true; 5640f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5641f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return false; 5642f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5643f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5644f69913056b8c6000ff0306573a97971702e8d35aRomain Guy @Override 5645f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean sendKeyEvent(KeyEvent event) { 5646f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // Use our own input connection, since the filter 5647f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // text view may not be shown in a window so has 5648f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // no ViewAncestor to dispatch events with. 5649f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mDefInputConnection.sendKeyEvent(event); 5650f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5651f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56520ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5653f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextBeforeCursor(int n, int flags) { 5654f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5655f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextBeforeCursor(n, flags); 5656f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5657f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56580ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5659f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getTextAfterCursor(int n, int flags) { 5660f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5661f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getTextAfterCursor(n, flags); 5662f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5663f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56640ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5665f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public CharSequence getSelectedText(int flags) { 5666f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return ""; 5667f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getSelectedText(flags); 5668f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5669f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56700ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5671f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public int getCursorCapsMode(int reqModes) { 5672f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTarget == null) return InputType.TYPE_TEXT_FLAG_CAP_SENTENCES; 5673f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget.getCursorCapsMode(reqModes); 5674f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5675f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56760ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5677f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public ExtractedText getExtractedText(ExtractedTextRequest request, int flags) { 5678f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().getExtractedText(request, flags); 5679f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5680f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56810ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5682f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean deleteSurroundingText(int beforeLength, int afterLength) { 5683f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().deleteSurroundingText(beforeLength, afterLength); 5684f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5685f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56860ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5687f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingText(CharSequence text, int newCursorPosition) { 5688f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingText(text, newCursorPosition); 5689f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5690f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56910ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5692f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setComposingRegion(int start, int end) { 5693f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setComposingRegion(start, end); 5694f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5695f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 56960ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5697f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean finishComposingText() { 5698f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTarget == null || mTarget.finishComposingText(); 5699f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5700f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57010ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5702f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitText(CharSequence text, int newCursorPosition) { 5703f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitText(text, newCursorPosition); 5704f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5705f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57060ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5707f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCompletion(CompletionInfo text) { 5708f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCompletion(text); 5709f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5710f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57110ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5712f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean commitCorrection(CorrectionInfo correctionInfo) { 5713f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().commitCorrection(correctionInfo); 5714f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5715f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57160ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5717f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean setSelection(int start, int end) { 5718f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().setSelection(start, end); 5719f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5720f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57210ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5722f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performContextMenuAction(int id) { 5723f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performContextMenuAction(id); 5724f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5725f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57260ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5727f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean beginBatchEdit() { 5728f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().beginBatchEdit(); 5729f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5730f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57310ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5732f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean endBatchEdit() { 5733f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().endBatchEdit(); 5734f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5735f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57360ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5737f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean clearMetaKeyStates(int states) { 5738f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().clearMetaKeyStates(states); 5739f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5740f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57410ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette @Override 5742f69913056b8c6000ff0306573a97971702e8d35aRomain Guy public boolean performPrivateCommand(String action, Bundle data) { 5743f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return getTarget().performPrivateCommand(action, data); 5744f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5745f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5746f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 5747b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5748b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5749b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5750b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5751b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5752b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5753b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5754b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 57550a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5756b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 5763f69913056b8c6000ff0306573a97971702e8d35aRomain Guy PopupWindow p = new PopupWindow(getContext()); 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 5767f69913056b8c6000ff0306573a97971702e8d35aRomain Guy p.setContentView(getTextFilterInput()); 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5773d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5782f69913056b8c6000ff0306573a97971702e8d35aRomain Guy private EditText getTextFilterInput() { 5783f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (mTextFilter == null) { 5784f69913056b8c6000ff0306573a97971702e8d35aRomain Guy final LayoutInflater layoutInflater = LayoutInflater.from(getContext()); 5785f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter = (EditText) layoutInflater.inflate( 5786f69913056b8c6000ff0306573a97971702e8d35aRomain Guy com.android.internal.R.layout.typing_filter, null); 5787f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // For some reason setting this as the "real" input type changes 5788f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // the text view in some way that it doesn't work, and I don't 5789f69913056b8c6000ff0306573a97971702e8d35aRomain Guy // want to figure out why this is. 5790f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5791f69913056b8c6000ff0306573a97971702e8d35aRomain Guy | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5792f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 5793f69913056b8c6000ff0306573a97971702e8d35aRomain Guy mTextFilter.addTextChangedListener(this); 5794f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5795f69913056b8c6000ff0306573a97971702e8d35aRomain Guy return mTextFilter; 5796f69913056b8c6000ff0306573a97971702e8d35aRomain Guy } 5797f69913056b8c6000ff0306573a97971702e8d35aRomain Guy 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 5803f69913056b8c6000ff0306573a97971702e8d35aRomain Guy getTextFilterInput().setText(""); 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58188fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 582224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 582743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 58361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58388fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 58441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 58451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58478fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5849f69913056b8c6000ff0306573a97971702e8d35aRomain Guy if (isTextFilterEnabled()) { 5850f69913056b8c6000ff0306573a97971702e8d35aRomain Guy createTextFilter(true); 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 58591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 58771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58838fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5892aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5893aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5894aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5895aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5896aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5897aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59435be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 59445be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 59455be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 59465be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 59475be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 59489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 59509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 595252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 595352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 595452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 595552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 595652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 595752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 595852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 595952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 59609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 59659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 59679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59687b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 59699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 59709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 59759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 59769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 59779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 59799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 59819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 59829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 59839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 59859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 598713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 59889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5991c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 6003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 6004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 6005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 6006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 6008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 600913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 6010499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6011499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 6012499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6013499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6014499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 60159b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 60169b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 60173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 60183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 60193ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 60203ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 60213ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 60223ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 60233ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 60249b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 60252148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 60269b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 6027499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6028335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 6029335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 6030335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 6031499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6032499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6033499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6034a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * Sets up the onClickHandler to be used by the RemoteViewsAdapter when inflating RemoteViews 60350ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6036a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @param handler The OnClickHandler to use when inflating RemoteViews. 60370ebe81e8b1f2b9db8d41b72a6dae8d6848b51cc5Alan Viverette * 6038a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen * @hide 6039a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen */ 6040a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen public void setRemoteViewsOnClickHandler(OnClickHandler handler) { 6041a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 6042a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen // service handling the specified intent. 6043a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen if (mRemoteAdapter != null) { 6044a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen mRemoteAdapter.setRemoteViewsOnClickHandler(handler); 6045a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6046a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen } 6047a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen 6048a6a4cbc18f7e5a3831d787d3f398e02c5eae6512Adam Cohen /** 60492148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 60502148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 60512148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 60528fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 60532148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 60542148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 60552148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 60562148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 60572148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 6058499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 6059499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 60608fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 606116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 6062499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 6063499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 60642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 60652148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 60662148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 60672148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 606816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6069fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 6070fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 607116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 6072499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 607316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6074499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6075499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6076499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6077499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 6078499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 60798fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6080499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 6081fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 6082fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 6083fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 6084fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 6085fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 6086499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6087499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6088499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6089b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6090b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6091b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6092b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6093b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6094b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6095b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6096b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6097b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6098b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6113b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6114b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6115b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6116b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6117b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6118b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6119b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6120b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6121b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6122b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6123b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6124b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6125b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6126b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6127b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6128b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6129b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6130b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6158a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 6159a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 6160a798170f2abe198f806b12dd904830bc25257525Adam Powell } 6161a798170f2abe198f806b12dd904830bc25257525Adam Powell 61628fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 61728fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 61778fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 61828fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 61978fa327a2fc1af466d59e7fb4969905865aa99a17Alan Viverette @Override 6198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6217bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 62189bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 62199bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 62209bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62234df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 62244df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 62254df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 62264df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 62274df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 62284df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6229bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 62304df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 62314df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 62320bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 62330bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 62340bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 62350bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 62360bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 62370bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 62380bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 62390bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6240bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 62410bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 62420bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6243079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6244079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6245079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6246079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6247079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6248079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6249079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6250539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6251539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6252539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6253539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6254539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 62569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 62579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 62619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 62649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 62659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 62669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 62699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 62709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 62829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 62849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 62859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 62909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 62949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 62959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 62979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 63209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 63229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 63249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 63269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6327539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6328539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6329539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6330728713258ffef4df053b85e0a3488334cbcba24cChet Haase private LongSparseArray<View> mTransientStateViewsById; 6331539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 63339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 63349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 63359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 63429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 63439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 63449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6346f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6347f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6348f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6349f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6350f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6351f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6352f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6353f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6354f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6355f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6356f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6357f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6358f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6359f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6360f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6361f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6362f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6363539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6364539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6365539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6366539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6367539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6368539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6369728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6370728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int count = mTransientStateViewsById.size(); 6371728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < count; i++) { 6372728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.valueAt(i).forceLayout(); 6373728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6374728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6375f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 63760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 63779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 63789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 63799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 63839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 63859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 63879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 63889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 63899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 63909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 63949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6401539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6402539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6403539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6404728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6405728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6406728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 64079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 64119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 64179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6422f69913056b8c6000ff0306573a97971702e8d35aRomain Guy //noinspection MismatchedReadAndWriteOfArray 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 64249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 64269c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 64289c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 64309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 64314df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 64329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 64419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 64479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6454539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6455728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds && mTransientStateViewsById != null) { 6456728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(position); 6457728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViewsById.get(id); 6458728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.remove(id); 6459728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6460539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6461728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews != null) { 6462728713258ffef4df053b85e0a3488334cbcba24cChet Haase final int index = mTransientStateViews.indexOfKey(position); 6463728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (index >= 0) { 6464728713258ffef4df053b85e0a3488334cbcba24cChet Haase View result = mTransientStateViews.valueAt(index); 6465728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.removeAt(index); 6466728713258ffef4df053b85e0a3488334cbcba24cChet Haase return result; 6467728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6468539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6469728713258ffef4df053b85e0a3488334cbcba24cChet Haase return null; 6470539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6471539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6472539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6473539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6474539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6475539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6476539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6477539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6478539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6479728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6480728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.clear(); 6481728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6482539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6483539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 64869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 64889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6489079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 64909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 64929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6493079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 64949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 64979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6500539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 65019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6504079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 65059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6510539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6511539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 65139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 65149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6515539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6516539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6517b7e0f7942b97c1f88f4aa2338cbf3623fdfdad97Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER && scrapHasTransientState) { 6518539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6519539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6520539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6521539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6522539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6523539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6524057a585fba01d92c38f27a8c080622dfd0c6f556Adam Powell scrap.dispatchStartTemporaryDetach(); 6525728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds) { 6526728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById == null) { 6527728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById = new LongSparseArray<View>(); 6528728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6529728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.put(lp.itemId, scrap); 6530a2230e18563833b9a0672067fe26a095c8847dd0Chet Haase } else if (!mDataChanged) { 6531a2230e18563833b9a0672067fe26a095c8847dd0Chet Haase // avoid putting views on transient state list during a data change; 6532a2230e18563833b9a0672067fe26a095c8847dd0Chet Haase // the layout positions may be out of sync with the adapter positions 6533728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews == null) { 6534728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews = new SparseArray<View>(); 6535728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6536728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.put(position, scrap); 6537728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 65389b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 65399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 65409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6542539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 65439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 65449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 65459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 65479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6549c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 65509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 65519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 65529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6556539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6557539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6558539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6559539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6560539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6561539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6562539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6563539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6564539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6565539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6566539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6567539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6568539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6569539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 65709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 65719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 65739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 65749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 65759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 65769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 65789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6579a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 65809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 65819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6582079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6583079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6584079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 65859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 65879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6588539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6589539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 65909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6591b7e0f7942b97c1f88f4aa2338cbf3623fdfdad97Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER && 6592539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 65939b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 65949b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6595539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6596728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mAdapter != null && mAdapterHasStableIds) { 6597728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById == null) { 6598728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById = new LongSparseArray<View>(); 6599728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6600728713258ffef4df053b85e0a3488334cbcba24cChet Haase long id = mAdapter.getItemId(mFirstActivePosition + i); 6601728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.put(id, victim); 6602728713258ffef4df053b85e0a3488334cbcba24cChet Haase } else { 6603728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViews == null) { 6604728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews = new SparseArray<View>(); 6605728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6606728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViews.put(mFirstActivePosition + i, victim); 6607539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6608539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 66099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 66109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 66139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 66149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6615a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6616079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 66179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 66189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6619c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 66209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 66219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 66229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 66279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 66319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 66329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 66349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 66359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 66369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 66379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 66389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 66399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 66409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 66419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 66429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 66439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 66449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6646bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6647bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6648bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6649bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6650bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6651bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6652bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6653bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6654bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6655bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6656728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (mTransientStateViewsById != null) { 6657728713258ffef4df053b85e0a3488334cbcba24cChet Haase for (int i = 0; i < mTransientStateViewsById.size(); i++) { 6658728713258ffef4df053b85e0a3488334cbcba24cChet Haase final View v = mTransientStateViewsById.valueAt(i); 6659728713258ffef4df053b85e0a3488334cbcba24cChet Haase if (!v.hasTransientState()) { 6660728713258ffef4df053b85e0a3488334cbcba24cChet Haase mTransientStateViewsById.removeAt(i); 6661728713258ffef4df053b85e0a3488334cbcba24cChet Haase i--; 6662728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6663728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 6664728713258ffef4df053b85e0a3488334cbcba24cChet Haase } 66659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 66679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 66699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 66709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 66719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 66729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 66739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 66749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 66759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 66769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 66779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 66789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 66799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 668252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 668352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 668452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 668552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 668652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 668752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 668852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 668952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 669052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 669152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 669252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 669352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 669452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 669552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 669652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 669752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 669852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 669952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 670052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6701266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 670252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 670352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 670452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 670552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 670652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 670752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 670852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 670952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 671052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 671152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 671252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 671352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 671452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 67159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6716079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6717079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6718079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6719079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6720079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6721079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6722079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6723079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6724079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6725079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6726079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6727079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6728079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6729079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6730079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6731079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6732079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6733079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 67349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6735