AbsListView.java revision 9c3e0e68260fe50456996d75304b73054cbde94a
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19234a5715309ea74757780aff6123e3144efb5b69Adam Powellimport com.android.internal.R; 20234a5715309ea74757780aff6123e3144efb5b69Adam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 22499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 28c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 40539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 42079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 43f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 44637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 45e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganovimport android.view.FocusFinder; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 51f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 52f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 60e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganovimport android.view.ViewRootImpl; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 62a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 63c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 64a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 650b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 68b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 69b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 77d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 78d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 79d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 90f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 94499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 95499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 979d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 98539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 99539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 24914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 25014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 25114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 25314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 274499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 275499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 277539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 278539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 279539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 280539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2822148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2832148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2842148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2852148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 296079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 297079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 298079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 299079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 300079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3560211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4121fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 490637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 49114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 49214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 49314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 49414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 49514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 49614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 542d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 543d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 544d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 545d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 546d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 573d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 575d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5806dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5816dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5824296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5834296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 58924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 59024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62089935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62589935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 647da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 648da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 649da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 650da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 651da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 65207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 65307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 655c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 656c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 657c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 658c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 659c1d7e770e123adfa992d013fa294693d077cbc78alanv 6604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 663da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 664b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 665b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 666a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 667b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 668b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 669ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 670ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 671ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 672ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 673ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6740b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 727e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 728e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 729e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 730e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 731e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 732e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 733e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 734e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 735e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 736e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 737e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 738e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 741e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 742e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 79520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 79620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 801d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 802d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 803df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 804d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 805d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 806d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 807d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 808d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8094296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8104296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8114296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8124296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 82489935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 82589935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 834d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 840539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 841539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 84314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 93814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 98514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 101714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1036bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 104029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 104814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1061bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 106329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 107114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 107729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 108029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 108129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 108229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1085bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1086bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1087bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 109329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 109629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 109729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 110129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 110229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 110329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 110429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 110529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 110629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 110729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 111029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 114314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11742bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11752bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11774ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11784ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 120520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 120820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 120920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 121420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 124116bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 125720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 125920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 126120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 126220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13280a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1331a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1332e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1333e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if ((focusableMode & FOCUSABLES_ACCESSIBILITY) == FOCUSABLES_ACCESSIBILITY 1334e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov && (direction == ACCESSIBILITY_FOCUS_FORWARD 1335e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov || direction == ACCESSIBILITY_FOCUS_BACKWARD)) { 1336e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (canTakeAccessibilityFocusFromHover()) { 1337e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov views.add(this); 1338e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1339e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } else { 1340e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov super.addFocusables(views, direction, focusableMode); 1341e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1342e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1343e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1344e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1345e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View focusSearch(int direction) { 1346e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return focusSearch(null, direction); 1347e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1348e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1349e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1350e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View focusSearch(View focused, int direction) { 1351e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov switch (direction) { 1352e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov case ACCESSIBILITY_FOCUS_FORWARD: { 1353e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov ViewRootImpl viewRootImpl = getViewRootImpl(); 1354e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (viewRootImpl == null) { 1355e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov break; 1356e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1357e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentFocus = viewRootImpl.getAccessibilityFocusedHost(); 1358e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentFocus == null) { 1359e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov break; 1360e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1361e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // If we have the focus try giving it to the first child. 1362e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentFocus == this) { 1363e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1364e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (firstVisiblePosition >= 0) { 1365e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return getChildAt(0); 1366e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1367e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return null; 1368e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1369e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Find the item that has accessibility focus. 1370e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int currentPosition = getPositionForView(currentFocus); 1371e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentPosition < 0 || currentPosition >= getCount()) { 1372e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov break; 1373e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1374e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to advance focus in the current item. 1375e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentItem = getChildAt(currentPosition - getFirstVisiblePosition()); 1376e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentItem instanceof ViewGroup) { 1377e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov ViewGroup currentItemGroup = (ViewGroup) currentItem; 1378e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View nextFocus = FocusFinder.getInstance().findNextFocus(currentItemGroup, 1379e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov currentFocus, direction); 1380e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (nextFocus != null && nextFocus != currentItemGroup 1381e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov && nextFocus != currentFocus) { 1382e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return nextFocus; 1383e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1384e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1385e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to move focus to the next item. 1386e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int nextPosition = currentPosition - getFirstVisiblePosition() + 1; 1387e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (nextPosition < getChildCount()) { 1388e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return getChildAt(nextPosition); 1389e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1390e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } break; 1391e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov case ACCESSIBILITY_FOCUS_BACKWARD: { 1392e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov ViewRootImpl viewRootImpl = getViewRootImpl(); 1393e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (viewRootImpl == null) { 1394e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov break; 1395e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1396e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentFocus = viewRootImpl.getAccessibilityFocusedHost(); 1397e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentFocus == null) { 1398e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov break; 1399e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1400e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // If we have the focus do a generic search. 1401e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentFocus == this) { 1402e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.focusSearch(this, direction); 1403e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1404e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Find the item that has accessibility focus. 1405e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int currentPosition = getPositionForView(currentFocus); 1406e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentPosition < 0 || currentPosition >= getCount()) { 1407e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov break; 1408e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1409e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to advance focus in the current item. 1410e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentItem = getChildAt(currentPosition - getFirstVisiblePosition()); 1411e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentItem instanceof ViewGroup) { 1412e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov ViewGroup currentItemGroup = (ViewGroup) currentItem; 1413e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View nextFocus = FocusFinder.getInstance().findNextFocus(currentItemGroup, 1414e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov currentFocus, direction); 1415e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (nextFocus != null && nextFocus != currentItemGroup 1416e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov && nextFocus != currentFocus) { 1417e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return nextFocus; 1418e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1419e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1420e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to move focus to the previous item. 1421e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int nextPosition = currentPosition - getFirstVisiblePosition() - 1; 1422e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (nextPosition >= 0) { 1423e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return getChildAt(nextPosition); 1424e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } else { 1425e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return this; 1426e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1427e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1428e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1429e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.focusSearch(focused, direction); 1430e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1431e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1432e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov /** 1433e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov * @hide 1434e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov */ 1435e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1436e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View findViewToTakeAccessibilityFocusFromHover(View child, View descendant) { 1437e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int position = getPositionForView(child); 1438e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (position != INVALID_POSITION) { 1439e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return getChildAt(position - mFirstPosition); 1440e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1441e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.findViewToTakeAccessibilityFocusFromHover(child, descendant); 1442e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1443e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1444e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 14454e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14464e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14474e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14484e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14494e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1450d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1451d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1452d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1453d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14549c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14554e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1456d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1457d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14584e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14594e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14638a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14648a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14658a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14668a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14678a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14688a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14698a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14708a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14718a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14728a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1473fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1474fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1475fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1476fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1477fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1478fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1479fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1480a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1481a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1482a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1483a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1484a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 148548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 148648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 148748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1488a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1489a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1490fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1491a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1492a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1493a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1494a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1495a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1496a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1497fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1498a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1499a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1500a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1501a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1502a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1503a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 150448d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15058a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15068a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 15716bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1627a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16282614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1629f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 163014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1650a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16512614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1652f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 165343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 165443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 165514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 165643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 165743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 165843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 165943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 166014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1661f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1673a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 16742614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1675f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 167643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 167743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 167843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 167943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 168043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 168114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1693f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1694f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1713f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 172399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17347becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 17357becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 17367becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 17377becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 17387becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 17397becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 17407becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 17417becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 17427becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 17437becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 174699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 174799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 174899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 174999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 175099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 175199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1770a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1771a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17729a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 17739a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 17749a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17759a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 177614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 17779a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 17789a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 17799a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 17809a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17819a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 17829a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17832614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1784f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1807079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18252614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18262614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1827a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1828a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1829a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1830a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1831a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1836d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1837d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 18430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1883b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1884b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1885b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1886b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1887b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1888b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1889b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1914079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19580b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19590b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 19790b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 19800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 19810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1983637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1984637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1985637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 19860b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 19870b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 19880b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 19890b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2038da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2039da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2040da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2041da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2042ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2043da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2044da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2045ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2046da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2047da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2050d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2051d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2052d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2053d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2058f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2059f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2060f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2061f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2062f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2063f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2064f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 20652c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 20662c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 20672c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 20682c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2069f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2083d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2084d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2085d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2086d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2087d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2088d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2089d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2090d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2096d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2097d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2098d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 220121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 220221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 220621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 220721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2210539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2211539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2212539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2213539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2214539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22264213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22274213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22284213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22294213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2236079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 224421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2245a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2246a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 22504213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22514213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22524213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22534213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22544213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2264aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2265aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2266aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2267aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2268aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2269aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2270aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2271aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2272aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2273aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2274aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2275aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2276aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2277aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2278c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2279c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2280c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2281c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2282c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2283c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2284c1d7e770e123adfa992d013fa294693d077cbc78alanv 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2288c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2289c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2290c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2291c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2292c1d7e770e123adfa992d013fa294693d077cbc78alanv 2293c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22949c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 22959c3e0e68260fe50456996d75304b73054cbde94aalanv 22969c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22979c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 22989c3e0e68260fe50456996d75304b73054cbde94aalanv info.setEnabled(false); 22999c3e0e68260fe50456996d75304b73054cbde94aalanv return; 23009c3e0e68260fe50456996d75304b73054cbde94aalanv } 2301c1d7e770e123adfa992d013fa294693d077cbc78alanv 23029c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 23039c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 23049c3e0e68260fe50456996d75304b73054cbde94aalanv info.setEnabled(false); 2305c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2306c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2307c1d7e770e123adfa992d013fa294693d077cbc78alanv 23089c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 23099c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 23109c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 23119c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 23129c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 23139c3e0e68260fe50456996d75304b73054cbde94aalanv } 23149c3e0e68260fe50456996d75304b73054cbde94aalanv 23159c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2316c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2317c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2318c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2319c1d7e770e123adfa992d013fa294693d077cbc78alanv 23209c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2321c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2322c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2323c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2324c1d7e770e123adfa992d013fa294693d077cbc78alanv 2325c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2326c1d7e770e123adfa992d013fa294693d077cbc78alanv 2327c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2328c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2329fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2330fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2331fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2332fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2333c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23349c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2335c1d7e770e123adfa992d013fa294693d077cbc78alanv 23369c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 23379c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2338c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2339c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2340c1d7e770e123adfa992d013fa294693d077cbc78alanv 23419c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 23429c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2343fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2344fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2345fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2346c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2347c1d7e770e123adfa992d013fa294693d077cbc78alanv 2348c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 23499c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 23509c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 23519c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 23529c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23539c3e0e68260fe50456996d75304b73054cbde94aalanv } 23549c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2355fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 23569c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 23579c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 23589c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23599c3e0e68260fe50456996d75304b73054cbde94aalanv } 23609c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2361fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2362fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2363c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2364c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2365fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2366fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2367fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2368c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2369c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2370fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2371c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2372c1d7e770e123adfa992d013fa294693d077cbc78alanv 2373fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2374c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2375c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2376c1d7e770e123adfa992d013fa294693d077cbc78alanv 2377079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2378079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2379079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2380079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2381079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2384e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2385e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2386e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2393a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2394079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2395079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 243620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 243720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 243820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 243920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 244020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 244120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 244220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 244320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 244420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 244520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 244620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 244720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 244820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 244920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 245020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 245120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 245220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 245320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 245420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 245520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 245620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 245720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 245820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 245920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 246020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2466d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2499079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2543079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2561df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2562df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2563df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2564df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2568079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2572ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2573ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2574ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2575ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2582df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2583df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2603079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2604079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2605079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2606079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2607079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2608079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2609079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2610079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2611079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2612079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2616079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2659e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2660e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2661e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2662e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2663e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2664e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26690e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 26700e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 26710e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 267482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 267582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 267682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 26776a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 26786a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 26796a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 26806a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 26816a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 268282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2683b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26901f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 26911f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 26921f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 269321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 269421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 269521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26970e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 26980e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 26999d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 27000e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 270282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 270382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 270482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 270582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 270682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 27091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 27101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 27111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 27121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 27141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 27151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 27161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2717d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2718d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2719d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2720d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2721d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2722d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 27234032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2724d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2725d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2726d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2727d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2728d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2729d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2730d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2731d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2732d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2733d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2734d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2735d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2736d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2737d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2738b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2749670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2750670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2751670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2752670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2753670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 27544032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27554032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27564032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 27590fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2763670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 277297566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 28180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2836005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2837005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2838005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2839005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2840005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 28417890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 28427890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 28437890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 28447890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 28457890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 28467890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28978350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 29011e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 29021e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 29041e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2929fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2930fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2931fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2932fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2933fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2934fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2935fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2936fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2937fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2938fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2939fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2940fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2941fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2942fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2943fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2968df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2969df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2970df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2971df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2972df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2977dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2978dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2979dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2980df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2981dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2983dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 298545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 298645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 298745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 298845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2992dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3059079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3060079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3061e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 310278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 310378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 310478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 310578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 310678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 312413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 312513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 312613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 312713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 312878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 313578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 313678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 313778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 314478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 315178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 315778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 316378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 316978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 317778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 317878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 318278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 318378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 318478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 320378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 320678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 320778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 320878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 320978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 321078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 321178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 321278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 321378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 321578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 321678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3217a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 321878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 321978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 322078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 322178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 322278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3223a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 323078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 323378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 324578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 324678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 324778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 324978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 325078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 325178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 325278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 325378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 325478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 325578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 325678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 325778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 325878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 325978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 326078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3261a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 326278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 326378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 326478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 326578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 326678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3267a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 326878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 326978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 327278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 327378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 32749d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 32759d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 32769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 327778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32799d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 32809d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 328178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 328278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 328378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 328478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 328578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 328878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 328978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 329078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 329178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 329278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 329478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 329578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33111e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3313637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3315637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33184032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33194032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33204032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 33240fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3327637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3334dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3335dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3336dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3337dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3338dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3339dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 33401fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 33411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 33421fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 33431fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 335082f3495b146b267f3786997752cef25310176349Romain Guy 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 335513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3360637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3361637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 33634032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33644032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33654032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3367044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3371044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3373637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3378637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 33830a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 33840a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 33850a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3392637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3393637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3394637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3395637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3396637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34019d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 340279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 34039d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3407637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3408637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3409637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3416fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3417fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3418fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3419fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3420fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3421fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 34262585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 34272585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 34282585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 34292585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 34302585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 34326f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34336f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 34346f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 34356f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 34366f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 34376f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 34386f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 344578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3448637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 344978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3462498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3463498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3464498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3465498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3466498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3488005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3489005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3493079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 34986198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3501d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3502d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3503d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3504d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3505d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3507079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3511d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3514d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3515d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3516d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3517005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3518005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3519079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3522005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3523d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3527079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 35306198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 35316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3534637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 35376198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3538637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 35396198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 35406198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 35426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 35436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 354521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 354621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3548637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3549637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3550637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3551637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3555637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 35566198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 35576198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 35586198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35596198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 35604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35616198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3562f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3563f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3564f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3565d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3566d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3567d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 35684032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 35694032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 35704032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 35716198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 357779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 35980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 36060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 361213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 36231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 36241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 36251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 36261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 365713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 36654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 36694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 36704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 36714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 36724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 36734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 36744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 36754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 36764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 36774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 36784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 36804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36829bc30d31322848d61f518c1db43544988faaba8fAdam Powell 36839bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 36849bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 36859bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 36869bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 36879bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 36889bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 36899bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 36909bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 36919bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 36929bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 36939bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 36949bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 36959bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 36969bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 36979bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 36989bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 36999bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 37009bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 37019bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 37029bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37090a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 37100a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 37110a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 37120a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 37130a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 37140a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 37150a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3716637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3718637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3719637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 372033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 372133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 372233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 372333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 372433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 372533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 372633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 372733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3728275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 372933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 373033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 373133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 373233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 373333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 373433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 373533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 373633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 373733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 373833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 373933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 374607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 374707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 374807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37509d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 37519d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3752a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 37549d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3755a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3756637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3757637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3758637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3759637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 376107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 376207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 376307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 37679d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 37689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3769e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3770a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 37729d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3773a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3774a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 379407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 379507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 379607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 379707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 379807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 379907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 380007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 380113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 380213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 380313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 380413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 380513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 380613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 380713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 380813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 380913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 381013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 381113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 381213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 381313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 381413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 381513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 381613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 381713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 381813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 381913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 382013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 382113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 382213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 382313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 382413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 382513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 382613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 382713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 382813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 382913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 38340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38351fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 38361fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 38371fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 38381fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38450a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 384879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 38554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 38564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 38574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 385979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 387113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 387213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 387379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 38744b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 38754b4f40f84e72579417604143e5f42115769649b8Romain Guy } 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 38822585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 38832585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 38842585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 38852585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 38862585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 38874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 388813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 388913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 389078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 389813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 39014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 390213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 39084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 39094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 39104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 39174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 39184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 39194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 39204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 39214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 39224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 39234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 39244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 39254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 39264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 39284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 39294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 39650046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3987d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3988d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3989d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3990d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3992d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3993d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3994d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3995d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3996d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3997d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3998d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3999b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4000b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4001d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4002d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4003d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4004d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4005d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4006b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4007d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4008d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4009d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4010d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4011d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4012d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 401379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 401779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 40200b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 40241fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 40331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 40341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 40351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4039637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40421fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4044637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4045e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4046637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4047637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 40500b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4051044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4052044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40551fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4060637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4061637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40704032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 40714032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 40724032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 40734032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 40744032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40771fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40800b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 40830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 40861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4089d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 409279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4093d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 409421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 409521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 409621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4097d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 40985e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 40995e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 41005e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 41015e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 41025e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4103d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4104d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4105d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4106d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 411079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 411179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4112d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4115d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4116d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4117d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4118d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4119d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 41217f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 41227f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 41237f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 41247f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 412579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 412679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 412779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 412879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 41519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4154d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4158d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 41679d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 41689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41763cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 41773cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 41783cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 41839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 41851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4194d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4208044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4209044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4212044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4213044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4214044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4215044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4216044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4217044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4218044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4219044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4220044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4221044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4222044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4223044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42261fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4238e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 42394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4244e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 42454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 425152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4252e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4253e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 42544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4259e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 42604032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42614032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4262aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4263aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4264aadf4fb68e640c0622a1070206f69a7724328632Adam Powell post(new Runnable() { 4265aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4266aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4267aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4268aadf4fb68e640c0622a1070206f69a7724328632Adam Powell }); 4269aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4270aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4271aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4272e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4273e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4274e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4275e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4276e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4277e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4279e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42814bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4282e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 4284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4285e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 4287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4289e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, INVALID_POSITION, SCROLL_DURATION); 4290458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4305e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 43064032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43074032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4313aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4314aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4315aadf4fb68e640c0622a1070206f69a7724328632Adam Powell post(new Runnable() { 4316aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4317aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4318aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4319aadf4fb68e640c0622a1070206f69a7724328632Adam Powell }); 4320aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4321aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4322aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4323e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4324e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4325e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4326e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4327e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4328e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4330e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43324bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4333e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 4341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4343458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4349e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 4357458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4359458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4366e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, boundPosition, SCROLL_DURATION); 4367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4381e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4382e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4383322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4384322171b333a1c796fcc1428a96ea1d854a3881faErik } 4385322171b333a1c796fcc1428a96ea1d854a3881faErik 4386aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 43874032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43884032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4389aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4390aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4391aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4392aadf4fb68e640c0622a1070206f69a7724328632Adam Powell post(new Runnable() { 4393aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4394aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4395aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4396aadf4fb68e640c0622a1070206f69a7724328632Adam Powell }); 4397aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4398aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4399aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4400aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4401aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4402aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4403aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4404aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4405aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 44061fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 44071fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4408e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 4409e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4410e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4411e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4412e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4413e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4414e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4415371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4416e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44174bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4418e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 4419e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 4420e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 4421e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 4422e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4423e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4424e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 44250b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4426e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4427e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4428e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4429371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 44304ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 44310b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 44320b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4433371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4434234a5715309ea74757780aff6123e3144efb5b69Adam Powell 44351fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4436e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4437e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4438e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4439e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4440e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4441e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4442e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4443e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4444e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4445e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4446e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4447e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4448e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4449e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4450e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4451e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4452e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4453e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4454e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4455e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4456e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4457e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4458e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4459e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4460e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4461e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4462e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4463e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4464e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4465e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4466e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4467e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4468e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4469e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4470e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4471e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4472e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4473e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4474e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4475e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4476e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4477e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4478e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4479e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4480e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4481e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4482e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4483e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4484e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4485e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4486e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4487e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4488e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4489e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4490e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4491e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4495e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4497458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 44994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4502458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 45044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 45050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 45060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45191fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 45201fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45221fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 45230b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45267e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 45271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4534029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 45354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4536029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4537029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 45511fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 45527e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 45540b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45581fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 45610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45701fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 45750b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 45760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45770b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 45791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 45801fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45820b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45867e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 45871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4589458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46010b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 46091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 46117e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 46120b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 46131fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46151fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 46180b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4624e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4625234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4626234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 46270b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4628234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4629234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4630e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4631371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4632234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4633234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4634e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4635371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4636e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46374032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4638e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 46394032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 46404032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 46414032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 46424032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46434032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46444032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 46454032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 46464032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46474032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 46484032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 46490b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 46500b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46510b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46521fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4653e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 46540b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 46550b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46560b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4658e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4659e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4660e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4661234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 46620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 46630b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 46640b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4665e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4666e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4667e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4668e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 46764bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 46774bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 46784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 46794bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 46804bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 46814bede9e425875542976a422222510fa4056a8339Romain Guy */ 46824bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 46834bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 46844bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 46854bede9e425875542976a422222510fa4056a8339Romain Guy } 46864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 46874bede9e425875542976a422222510fa4056a8339Romain Guy } 468821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 468921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 469021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 469121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 46924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 469321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 469421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 469521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 469621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 469721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 46984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 46994bede9e425875542976a422222510fa4056a8339Romain Guy /** 4700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4710322171b333a1c796fcc1428a96ea1d854a3881faErik 4711322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4712322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4713322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4714322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4715322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4716322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4717322171b333a1c796fcc1428a96ea1d854a3881faErik * 4718322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4719322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4720322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4721322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4722322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4723322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4724322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4725322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4726322171b333a1c796fcc1428a96ea1d854a3881faErik } 4727322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4728322171b333a1c796fcc1428a96ea1d854a3881faErik } 4729322171b333a1c796fcc1428a96ea1d854a3881faErik 4730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4731e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4732e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4733e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4734e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4735e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4736e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4737e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4738e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4739e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4740e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4741e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4742e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4743e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4744e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4745e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4746e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4747e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4748e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 47524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4755458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 47700b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 47710b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 47720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 47730b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47774032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4778299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 47794032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 47804032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 47814032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 47824032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 47834032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 47844032252c997be9f5d013054dc23ace855007b3a5Adam Powell 478579303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 47864032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4787aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 47884032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 47894032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 47904032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 47914032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 47924032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47934032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 47940046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 47950b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4796299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4800499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4801499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4802499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4803499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4804499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4805499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4806499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4807499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4808499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4809499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4810499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4811499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4812499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4813499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4814499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4815499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4816499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4817499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4818499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4819499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4820499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4821499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4822499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4823499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4824499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4825499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4826499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4827499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4828499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4829499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4830499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4831499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4832499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4833499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4834499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 48369d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 48390211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 48449d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 48459d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 48469d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 48479d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 48489d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 48499d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 48509d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 48519d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 48529d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 48539d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48549d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 48559d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 48569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48576dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48586dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48599d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 48609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4884bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4885bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4886bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4887bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4888bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4889bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4890bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4891bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4892bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4893bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4895bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4896bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4916bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4921bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 49260a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 49270a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 49280a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 49290a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49310a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4937029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4938029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4939029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4940029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 49498c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 49508c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49518c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 49528c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4961079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 49728c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 49738c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49748c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 49758c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4985079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 5003539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 5004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5005539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 50069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 50079d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 50089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 50091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 50109d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 50119d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 5015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 5016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 5019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 5020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5023029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 50242a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 50252a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 5026079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 5027079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5028079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 5029079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 5030079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 5031079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 50322a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 5033079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5034079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 5035029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5036029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 5038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 50404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5076ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5077ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5078ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 51074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51364e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 51374e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 51388d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 51398d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 51404e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 51418d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5142becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5143becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5144becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 51454e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51468d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 51474e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 52434032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 52444032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 52454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 52523c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 526314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 526414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 526514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 526614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 526714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 526814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 526914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 527014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 527114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 527214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 527314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 527414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 527514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 527614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 527714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 527814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 527914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 528014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 528114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 528214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 528314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 528414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 528514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 528614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 528714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 528814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 528914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 529014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 529114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 529214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 529314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 529414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 529514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 529614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 529714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 529814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 529914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 530014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 530314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 530414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 530514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5311ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5312ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 531414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 531514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 531614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5318539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5319539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5320539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 532114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 532214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53300785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5333da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5334da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5335da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5336da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5337da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5338da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 53390785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5340ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 53410785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 53420785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5343ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5344ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 53450785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 53460785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 53470785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53480785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 53490785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 53500785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 53510785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5444079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 544843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 544943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 545043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 545143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 545243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 545343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 545443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 545543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 545643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 545743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 545843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 545943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 546043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 546143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 546243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 546324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 546443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 546543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5469d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 54814df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5482b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5488b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 549224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5495b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55414e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 55424e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 55434e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 55444e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 55454e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 55464e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 55474e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 55504e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 55514e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5572b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 558883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 55898d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 55908d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5591b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5592b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5593b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5594b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 559583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 559683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 559783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 559883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 559983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 560083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5606cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5610b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5615105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5637b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5638b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5639b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5640b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5641c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5642c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5643c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5644c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5645c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 56461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 56471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 56481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 56491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 56501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 56521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 56531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 56541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 56551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 56571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 56591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 56601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 56611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 56621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 56631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 56641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 56651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 56661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 56671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 56691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 56711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 56731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 56751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 56761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5677c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 56781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 56791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 56811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 56831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 56841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 56851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5686c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5687c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5688b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5690b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5691b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5692b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5693b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5694b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5695b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5696b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5697b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5699b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 57084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 57094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5712b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5713b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5714b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5715b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5716b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5717105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5728d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 576024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 576543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 57741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 57811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 57821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5785c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 57941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 58121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5825aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5826aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5827aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5828aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5829aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5830aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58765be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 58775be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 58785be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 58795be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 58805be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 588552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 588652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 588752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 588852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 588952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 589052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 589152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 589252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59017b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 592013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5924c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 593613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 593713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 593813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 593913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 594013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 594113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 594213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 594313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 594413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 594513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 594613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 594713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 594813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 594913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 595013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 595152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 595213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 595313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 595413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 595513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 595613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 595713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 595813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 595913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 596013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 596113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 596213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 596313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 596413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 596513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 596613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 596713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 596813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 596913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 597013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 597113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 597213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 597313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 597413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 597513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 597613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 597713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 597813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 597952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 598013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 598113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 598213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 598313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 598452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 598513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 598613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 598713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 598813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 598913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 599013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 599113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 599913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 6000499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 6001499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 6002499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 6003499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6004499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 60059b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 60069b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 60073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 60083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 60093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 60103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 60113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 60123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 60133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 60149b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 60152148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 60169b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 6017499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 6018499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6019499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6020499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 60212148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 60222148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 60232148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 60242148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 60252148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 60262148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 60272148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 60282148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 6029499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 6030499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 603116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 6032499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 6033499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 60342148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 60352148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 60362148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 60372148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 603816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6039fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 6040fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 604116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 6042499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 604316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6044499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6045499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6046499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6047499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 6048499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6049499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 6050fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 6051fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 6052fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 6053fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 6054fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 6055499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6056499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6057499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6058b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6059b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6060b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6061b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6062b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6063b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6064b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6065b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6066b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6067b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 60739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 60769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 60809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6082b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6083b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6084b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6085b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6086b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6087b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6088b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6089b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6090b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6091b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6092b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6093b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6094b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6095b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6096b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6097b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6098b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6099b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 61709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6177bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 61789bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 61799bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 61809bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 61819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61834df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 61844df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 61854df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 61864df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 61874df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 61884df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6189bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 61904df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 61914df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 61920bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 61930bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 61940bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 61950bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 61960bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 61970bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 61980bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 61990bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6200bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 62010bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 62020bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6203079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6204079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6205079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6206079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6207079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6208079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6209079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6210539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6211539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6212539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6213539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6214539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 62249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 62259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 62269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 62299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 62379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 62399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 62409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 62429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 62449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 62459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 62469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 62489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 62509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 62549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 62559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 62569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 62579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 62589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 62619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 62649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 62679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 62699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 62729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 62739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 62749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 62829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 62849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6287539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6288539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6289539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 62929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 62939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 62949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 62979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6305f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6306f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6307f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6308f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6309f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6310f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6311f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6312f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6313f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6314f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6315f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6316f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6317f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6318f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6319f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6320f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6321f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6322539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6323539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6324539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6325539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6326539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6327539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6328f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 63290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 63309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 63319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 63329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 63369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 63419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 63429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 63439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 63469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 63479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 63489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 63499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 63509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 63519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6354539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6355539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6356539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 63579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 63619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 63639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 63649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 63659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 63679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 63689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 63699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 63719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 63749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 63759c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 63769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 63779c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 63789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 63799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 63804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 63819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 63879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 63889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 63909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 63919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 63949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 64019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6403539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6404539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6405539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6406539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6407539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6408539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6409539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6410539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6411539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6412539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6413539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6414539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6415539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6416539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6417539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6418539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6419539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6420539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6421539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6422539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6423539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6424539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6430079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 64319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 64339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6434079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 64359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6441539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6445079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 64479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6451539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6452539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 64549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6456539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6457539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6458539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6459539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6460539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6461539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6462539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6463539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6464539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6465539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6466539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6467539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6468057a585fba01d92c38f27a8c080622dfd0c6f556Adam Powell scrap.dispatchStartTemporaryDetach(); 6469539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 64709b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 64719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 64729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6474539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 64759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 64769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 64779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 64799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6481c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 64829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 64839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 64849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6488539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6489539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6490539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6491539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6492539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6493539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6494539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6495539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6496539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6497539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6498539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6499539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6500539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6501539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 65059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 65109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6511a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 65139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6514079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6515079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6516079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 65179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 65199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6520539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6521539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 65229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6523539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6524539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 65259b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 65269b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6527539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6528539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6529539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6530539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6531539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6532539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 65339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 65349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 65379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 65389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6539a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6540079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 65419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 65429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6543c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 65449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 65459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 65469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 65499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 65509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 65519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 65529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 65579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 65619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 65629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 65649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 65659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 65669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 65679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 65689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 65699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 65709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 65719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 65729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 65739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 65749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6576bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6577bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6578bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6579bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6580bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6581bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6582bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6583bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6584bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6585bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 65869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 65909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 65929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 65939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 65949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 65969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 65979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 65989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 65999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 66009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 660352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 660452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 660552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 660652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 660752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 660852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 660952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 661052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 661152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 661252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 661352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 661452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 661552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 661652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 661752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 661852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 661952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 662052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 662152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6622266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 662352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 662452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 662552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 662652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 662752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 662852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 662952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 663052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 663152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 663252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 663352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 663452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 663552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 66369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6637079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6638079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6639079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6640079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6641079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6642079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6643079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6644079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6645079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6646079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6647079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6648079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6649079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6650079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6651079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6652079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6653079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6654079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 66559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6656