AbsListView.java revision 161abf3d44feebb8462f7d0cbee81574d666234b
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; 582161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 5834296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5844296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 59024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 59124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 6004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62189935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62689935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 648da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 649da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 650da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 651da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 652da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 65307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 65407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 656c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 657c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 658c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 659c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 660c1d7e770e123adfa992d013fa294693d077cbc78alanv 6614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6634e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 664da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 665b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 666b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 667a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 668b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 669b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 670ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 671ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 672ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 673ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 674ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6790b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 728e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 729e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 730e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 731e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 732e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 733e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 734e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 735e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 736e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 737e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 738e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 741e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 742e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 743e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 79620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 79720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 802d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 803d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 804df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 805d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 806d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 807d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 808d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 809d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8104296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8114296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8124296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8134296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 818d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 82589935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 82689935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 835d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 841539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 842539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 84414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 93914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 98614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 101814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1037bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 104129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 104914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1062bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 106429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 107214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 107829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 108129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 108229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 108329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1086bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1087bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1088bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 109629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 109729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 110129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 110229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 110329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 110429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 110529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 110629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 110729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 111029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 111529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 114414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11752bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11762bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11784ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11794ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12040a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 120820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 120920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 121420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 124120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 124216bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 126120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 126220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12680a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13290a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1332a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1333e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1334e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if ((focusableMode & FOCUSABLES_ACCESSIBILITY) == FOCUSABLES_ACCESSIBILITY 1335e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov && (direction == ACCESSIBILITY_FOCUS_FORWARD 1336e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov || direction == ACCESSIBILITY_FOCUS_BACKWARD)) { 1337e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (canTakeAccessibilityFocusFromHover()) { 1338e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov views.add(this); 1339e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1340e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } else { 1341e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov super.addFocusables(views, direction, focusableMode); 1342e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1343e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1344e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1345e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1346e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View focusSearch(int direction) { 1347e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return focusSearch(null, direction); 1348e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1349e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1350e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1351e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View focusSearch(View focused, int direction) { 1352e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov switch (direction) { 1353e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov case ACCESSIBILITY_FOCUS_FORWARD: { 1354e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov ViewRootImpl viewRootImpl = getViewRootImpl(); 1355e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (viewRootImpl == null) { 1356f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return null; 1357e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1358e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentFocus = viewRootImpl.getAccessibilityFocusedHost(); 1359e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentFocus == null) { 1360f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1361e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1362e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // If we have the focus try giving it to the first child. 1363e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentFocus == this) { 1364f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov if (getChildCount() > 0) { 1365e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return getChildAt(0); 1366e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1367f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 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()) { 1372f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 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); 1389f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov } else { 1390f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1391e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1392f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov } 1393e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov case ACCESSIBILITY_FOCUS_BACKWARD: { 1394e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov ViewRootImpl viewRootImpl = getViewRootImpl(); 1395e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (viewRootImpl == null) { 1396f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return null; 1397e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1398e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentFocus = viewRootImpl.getAccessibilityFocusedHost(); 1399e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentFocus == null) { 1400f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1401e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1402e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // If we have the focus do a generic search. 1403e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentFocus == this) { 1404f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov final int lastChildIndex = getChildCount() - 1; 1405f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov if (lastChildIndex >= 0) { 1406f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return getChildAt(lastChildIndex); 1407f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov } 1408e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.focusSearch(this, direction); 1409e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1410e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Find the item that has accessibility focus. 1411e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int currentPosition = getPositionForView(currentFocus); 1412e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentPosition < 0 || currentPosition >= getCount()) { 1413f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1414e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1415e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to advance focus in the current item. 1416e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentItem = getChildAt(currentPosition - getFirstVisiblePosition()); 1417e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentItem instanceof ViewGroup) { 1418e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov ViewGroup currentItemGroup = (ViewGroup) currentItem; 1419e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View nextFocus = FocusFinder.getInstance().findNextFocus(currentItemGroup, 1420e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov currentFocus, direction); 1421e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (nextFocus != null && nextFocus != currentItemGroup 1422e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov && nextFocus != currentFocus) { 1423e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return nextFocus; 1424e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1425e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1426e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to move focus to the previous item. 1427e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int nextPosition = currentPosition - getFirstVisiblePosition() - 1; 1428e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (nextPosition >= 0) { 1429e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return getChildAt(nextPosition); 1430e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } else { 1431f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1432e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1433e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1434e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1435e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.focusSearch(focused, direction); 1436e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1437e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1438e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov /** 1439e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov * @hide 1440e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov */ 1441e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1442e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View findViewToTakeAccessibilityFocusFromHover(View child, View descendant) { 1443e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int position = getPositionForView(child); 1444e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (position != INVALID_POSITION) { 1445e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return getChildAt(position - mFirstPosition); 1446e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1447e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.findViewToTakeAccessibilityFocusFromHover(child, descendant); 1448e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1449e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1450e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 14514e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14524e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14534e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14544e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14554e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1456d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1457d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1458d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1459d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14609c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1462d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1463d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14644e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14654e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14664e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14674e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14684e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14698a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14708a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14718a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14728a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14738a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14748a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14758a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14768a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 14778a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 14788a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1479fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1480fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1481fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1482fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1483fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1484fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1485fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1486a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1487a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1488a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1489a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1490a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 149148d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 149248d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 149348d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1494a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1495a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1496fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1497a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1498a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1499a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1500a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1501a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1502a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1503fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1504a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1505a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1506a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1507a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1508a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1509a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 151048d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15118a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15128a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 15776bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1633a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16342614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1635f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 163614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1656a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16572614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1658f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 165943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 166043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 166114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 166243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 166343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 166443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 166543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 166614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1667f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1679a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 16802614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1681f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 168243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 168343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 168443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 168543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 168643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 168714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1699f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1700f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1719f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 172999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17407becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 17417becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 17427becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 17437becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 17447becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 17457becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 17467becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 17477becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 17487becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 17497becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 175299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 175399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 175499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 175599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 175699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 175799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1776a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1777a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17789a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 17799a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 17809a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17819a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 178214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 17839a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 17849a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 17859a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 17869a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17879a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 17889a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 17892614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1813079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18312614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18322614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1833a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1834a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1835a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1836a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1837a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1842d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1843d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 18490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1889b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1890b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1891b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1892b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1893b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1894b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1895b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1914161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1921079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19650b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19660b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 19860b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 19870b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 19880b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 19930b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 19940b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 19950b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 19960b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2045da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2046da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2047da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2048da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2049ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2050da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2051da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2052ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2053da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2054da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2057d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2058d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2059d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2060d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2065f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2066f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2067f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2068f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2069f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2070f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2071f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 20722c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 20732c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 20742c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 20752c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2076f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2090d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2091d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2092d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2093d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2094d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2095d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2096d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2097d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2103d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2104d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2105d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 220821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 220921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 221321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 221421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2217539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2218539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2219539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2220539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2221539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22284213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22294213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22304213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22314213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2233079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 223721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2238a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2239a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 22434213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22444213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22454213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22464213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22474213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2253aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2254aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2255aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2256aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2257aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2258aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2259aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2260aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2261aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2262aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2263aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2264aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2265aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2266aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2267c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2268c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2269c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2270c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2271c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2272c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2273c1d7e770e123adfa992d013fa294693d077cbc78alanv 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2277c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2278c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2279c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2280c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2281c1d7e770e123adfa992d013fa294693d077cbc78alanv 2282c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22839c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 22849c3e0e68260fe50456996d75304b73054cbde94aalanv 22859c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22869c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 22879c3e0e68260fe50456996d75304b73054cbde94aalanv info.setEnabled(false); 22889c3e0e68260fe50456996d75304b73054cbde94aalanv return; 22899c3e0e68260fe50456996d75304b73054cbde94aalanv } 2290c1d7e770e123adfa992d013fa294693d077cbc78alanv 22919c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 22929c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 22939c3e0e68260fe50456996d75304b73054cbde94aalanv info.setEnabled(false); 2294c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2295c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2296c1d7e770e123adfa992d013fa294693d077cbc78alanv 22979c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 22989c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 22999c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 23009c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 23019c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 23029c3e0e68260fe50456996d75304b73054cbde94aalanv } 23039c3e0e68260fe50456996d75304b73054cbde94aalanv 23049c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2305c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2306c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2307c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2308c1d7e770e123adfa992d013fa294693d077cbc78alanv 23099c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2310c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2311c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2312c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2313c1d7e770e123adfa992d013fa294693d077cbc78alanv 2314c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2315c1d7e770e123adfa992d013fa294693d077cbc78alanv 2316c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2317c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2318fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2319fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2320fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2321fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2322c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23239c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2324c1d7e770e123adfa992d013fa294693d077cbc78alanv 23259c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 23269c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2327c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2328c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2329c1d7e770e123adfa992d013fa294693d077cbc78alanv 23309c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 23319c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2332fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2333fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2334fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2335c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2336c1d7e770e123adfa992d013fa294693d077cbc78alanv 2337c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 23389c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 23399c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 23409c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 23419c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23429c3e0e68260fe50456996d75304b73054cbde94aalanv } 23439c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2344fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 23459c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 23469c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 23479c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23489c3e0e68260fe50456996d75304b73054cbde94aalanv } 23499c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2350fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2351fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2352c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2353c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2354fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2355fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2356fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2357c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2358c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2359fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2360c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2361c1d7e770e123adfa992d013fa294693d077cbc78alanv 2362fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2363c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2364c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2365c1d7e770e123adfa992d013fa294693d077cbc78alanv 2366079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2367079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2368079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2369079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2370079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2373e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2374e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2375e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2382a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2383079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2384079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 242520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 242620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 242720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 242820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 242920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 243020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 243120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 243220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 243320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 243420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 243520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 243620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 243720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 243820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 243920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 244020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 244120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 244220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 244320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 244420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 244520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 244620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 244720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 244820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 244920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2455d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2488079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2532079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2550df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2551df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2552df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2553df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2557079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2561ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2562ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2563ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2564ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2571df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2572df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2592079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2593079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2594079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2595079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2596079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2597079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2598079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2599079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2600079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2601079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2605079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2648e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2649e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2650e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2651e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2652e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2653e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26580e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 26590e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 26600e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 266382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 266482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 266582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 26666a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 26676a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 26686a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 26696a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 26706a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 267182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2672b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26791f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 26801f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 26811f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 268221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 268321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 268421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26860e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 26870e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 26889d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 26890e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 269182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 269282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 269382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 269482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 269582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 26961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26971cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 26981cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 26991cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 27001cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 27011cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27021cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 27031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 27041cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 27051cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2706d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2707d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2708d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2709d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2710d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2711d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 27124032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2713d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2714d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2715d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2716d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2717d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2718d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2719d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2720d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2721d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2722d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2723d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2724d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2725d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2726d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2727b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2738670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2739670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2740670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2741670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2742670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 27434032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27444032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 27480fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2752670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 276197566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 28070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2825005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2826005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2827005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2828005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2829005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 28307890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 28317890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 28327890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 28337890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 28347890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 28357890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28868350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 28901e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 28911e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 28931e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2918fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2919fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2920fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2921fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2922fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2923fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2924fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2925fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2926fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2927fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2928fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2929fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2930fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2931fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2932fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2957df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2958df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2959df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2960df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2961df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2966dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2967dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2968dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2969df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2970dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2972dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 297445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 297545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 297645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 297745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2981dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3048079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3049079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3050e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 308378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 308678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 309178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 309278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 309378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 309478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 309578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 309678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 311313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 311413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 311513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 311613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 312478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 312578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 312678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 312778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 312878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 312978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 313078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 313178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 313278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 313378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 313478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 313778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 314478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 315178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 315778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 316378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 316978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 317778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 317878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 317978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 318078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 318278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 318378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 320378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 320478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 320578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3206a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 320778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 320878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 320978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 321078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 321178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3212a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 321378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 321778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 321978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 322178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 322278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 322378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 322578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 322678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 322778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 323178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 323378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 324578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 324678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 324778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 324878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 324978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3250a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 325178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 325278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 325378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 325478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 325578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3256a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 325778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 326078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 326178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 326278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 32639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 32649d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 32659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 326678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 326778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 32699d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 327078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 327178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 327278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 327378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 327478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 327578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 327678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 327778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 327978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 328078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 328178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 328378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 328478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33001e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3306637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33074032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33084032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33094032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3310637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 33130fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3315637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3323dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3324dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3325dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3326dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3327dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3328dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 33291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 33301fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 33311fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 33321fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 333982f3495b146b267f3786997752cef25310176349Romain Guy 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 334413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 33524032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33534032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33544032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3355637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3356044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3357637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3358637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3360044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3361637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3364637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 33720a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 33730a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 33740a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3378637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33909d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 339179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 33929d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3393637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3394637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3395637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3396637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3405fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3406fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3407fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3408fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3409fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3410fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 34152585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 34162585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 34172585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 34182585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 34192585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 34216f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34226f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 34236f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 34246f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 34256f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 34266f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 34276f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 343478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3437637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 343878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3439637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3451498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3452498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3453498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3454498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3455498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3477005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3478005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3482079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 34876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3490d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3491d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3492d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3493d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3494d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3496079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3500d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3503d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3504d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3505d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3506005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3507005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3508079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3511005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3512d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3516079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 35196198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 35206198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3522637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3523637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3524637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 35266198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 35286198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 35296198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35306198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 35316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 35326198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 353421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 353521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3538637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3539637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3540637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3541637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3542637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 35456198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 35466198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 35476198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 35494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35506198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3551f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3552f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3553f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3554d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3555d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3556d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 35574032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 35584032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 35594032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 35606198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 356679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 35870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 35950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 360113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 36121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 36131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 36141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 36151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 364613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 36544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 36584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 36594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 36604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 36614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 36624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 36634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 36644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 36654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 36664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 36674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 36694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36719bc30d31322848d61f518c1db43544988faaba8fAdam Powell 36729bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 36739bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 36749bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 36759bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 36769bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 36779bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 36789bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 36799bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 36809bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 36819bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 36829bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 36839bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 36849bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 36859bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 36869bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 36879bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 36889bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 36899bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 36909bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 36919bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36980a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 36990a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 37000a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 37010a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 37020a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 37030a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 37040a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3705637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3706637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3707637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3708637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 370933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 371033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 371133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 371233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 371333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 371433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 371533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 371633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3717275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 371833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 371933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 372033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 372133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 372233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 372333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 372433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 372533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 372633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 372733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 372833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 373507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 373607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 373707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37399d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 37409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3741a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 37439d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3744a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 375007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 375107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 375207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37559d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 37569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 37579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3758e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3759a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 37619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3762a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3763a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 378207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 378307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 378407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 378507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 378607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 378707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 378807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 378907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 379013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 379113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 379213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 379313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 379413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 379513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 379613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 379713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 379813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 379913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 380013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 380113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 380213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 380313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 380413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 380513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 380613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 380713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 380813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 380913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 381013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 381113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 381213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 381313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 381413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 381513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 381613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 381713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 381813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 38230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38241fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 38251fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 38261fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 38271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 383779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 38444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 38454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 38464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 384879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 386013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 386113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 386279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 38634b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 38644b4f40f84e72579417604143e5f42115769649b8Romain Guy } 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 38712585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 38722585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 38732585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 38742585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 38752585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 38764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 387713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 387813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 387978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 388713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 38904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 389113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 38974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 38984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 38994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 39064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 39074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 39084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 39094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 39104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 39114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 39124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 39134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 39144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 39154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 39174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 39184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 39540046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3976d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3977d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3978d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3979d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3981d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3982d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3983d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3984d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3985d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3986d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3987d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3988b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3989b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3990d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3991d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3992d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3993d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3994d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3995b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3996d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3997d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3998d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3999d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4000d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4001d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 400279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 400679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 40090b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 40131fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 40221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 40231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 40241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40311fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4034e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4037637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 40390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4040044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4041044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4045637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4046637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4047637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40594032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 40604032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 40614032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 40624032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 40634032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40661fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40690b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 40720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 40751fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4078d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 408179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4082d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 408321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 408421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 408521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4086d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 40875e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 40885e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 40895e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 40905e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 40915e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4092d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4093d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4094d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4095d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 409979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 410079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4101d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4104d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4105d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4106d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4107d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4108d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 41107f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 41117f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 41127f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 41137f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 411479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 411579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 411679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 411779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4143d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4147d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 41569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 41579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41653cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 41663cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 41673cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 41729d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 41741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4183d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4197044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4198044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4201044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4202044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4203044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4204044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4205044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4206044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4207044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4208044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4209044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4210044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4211044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4212044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42151fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4226458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4227e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 42284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4233e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 42344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4235458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4238458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 424052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4241e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4242e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 42434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4244458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4248e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 42494032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42504032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4251aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4252aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4253161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4254aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4255aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4256aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4257161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4258aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4259aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4260aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4261e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4262e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4263e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4264e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4265e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4266e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4268e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42704bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4271e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 4273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4274e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 4276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4278e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, INVALID_POSITION, SCROLL_DURATION); 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 42904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4294e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 42954032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42964032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4302aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4303aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4304161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4305aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4306aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4307aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4308161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4309aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4310aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4311aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4312e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4313e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4314e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4315e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4316e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4317e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4319e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43214bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4322e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 4330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4338e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4343458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4355e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, boundPosition, SCROLL_DURATION); 4356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4357458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4359458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43681fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4370e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4371e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4372322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4373322171b333a1c796fcc1428a96ea1d854a3881faErik } 4374322171b333a1c796fcc1428a96ea1d854a3881faErik 4375aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 43764032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43774032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4378aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4379aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4380aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4381161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4382aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4383aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4384aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4385161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4386aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4387aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4388aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4389aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4390aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4391aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4392aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4393aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4394aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 43951fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 43961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4397e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 4398e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4399e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4400e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4401e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4402e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4403e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4404371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4405e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44064bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4407e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 4408e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 4409e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 4410e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 4411e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4412e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4413e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 44140b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4415e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4416e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4417e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4418371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 44194ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 44200b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 44210b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4422371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4423234a5715309ea74757780aff6123e3144efb5b69Adam Powell 44241fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4425e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4426e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4427e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4428e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4429e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4430e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4431e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4432e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4433e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4434e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4435e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4436e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4437e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4438e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4439e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4440e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4441e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4442e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4443e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4444e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4445e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4446e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4447e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4448e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4449e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4450e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4451e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4452e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4453e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4454e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4455e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4456e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4457e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4458e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4459e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4460e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4461e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4462e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4463e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4464e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4465e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4466e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4467e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4468e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4469e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4470e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4471e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4472e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4473e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4474e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4475e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4476e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4477e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4478e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4479e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4480e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4482458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4484e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 44884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 44934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44940b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 44950b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44960b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4497458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45001fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4502458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45081fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 45091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 45120b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45157e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 45161fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4523029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 45244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4525029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4526029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45331fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4536458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 45401fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 45417e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 45430b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 45500b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4551458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4552458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45591fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 45640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 45650b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45660b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 45681fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 45691fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45710b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45757e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 45761fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4589458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45900b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45981fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 46007e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 46010b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 46021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46041fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 46070b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4613e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4614234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4615234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 46160b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4617234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4618234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4619e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4620371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4621234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4622234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4623e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4624371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4625e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46264032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4627e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 46284032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 46294032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 46304032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 46314032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46324032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46334032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 46344032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 46354032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46364032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 46374032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 46380b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 46390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46400b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4642e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 46430b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 46440b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46450b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4647e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4648e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4649e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4650234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 46510b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 46520b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 46530b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4654e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4655e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4656e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4657e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4658458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 46654bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 46664bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 46674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 46684bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 46694bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 46704bede9e425875542976a422222510fa4056a8339Romain Guy */ 46714bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 46724bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 46734bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 46744bede9e425875542976a422222510fa4056a8339Romain Guy } 46754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 46764bede9e425875542976a422222510fa4056a8339Romain Guy } 467721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 467821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 467921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 468021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 46814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 468221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 468321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 468421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 468521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 468621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 46874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 46884bede9e425875542976a422222510fa4056a8339Romain Guy /** 4689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4699322171b333a1c796fcc1428a96ea1d854a3881faErik 4700322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4701322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4702322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4703322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4704322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4705322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4706322171b333a1c796fcc1428a96ea1d854a3881faErik * 4707322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4708322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4709322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4710322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4711322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4712322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4713322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4714322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4715322171b333a1c796fcc1428a96ea1d854a3881faErik } 4716322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4717322171b333a1c796fcc1428a96ea1d854a3881faErik } 4718322171b333a1c796fcc1428a96ea1d854a3881faErik 4719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4720e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4721e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4722e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4723e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4724e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4725e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4726e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4727e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4728e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4729e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4730e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4731e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4732e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4733e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4734e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4735e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4736e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4737e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 47414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4743458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4755458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 47590b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 47600b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 47610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 47620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47664032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4767299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 47684032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 47694032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 47704032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 47714032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 47724032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 47734032252c997be9f5d013054dc23ace855007b3a5Adam Powell 477479303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 47754032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4776aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 47774032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 47784032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 47794032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 47804032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 47814032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47824032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 47830046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 47840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4785299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4788499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4789499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4790499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4791499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4792499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4793499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4794499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4795499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4796499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4797499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4798499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4799499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4800499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4801499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4802499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4803499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4804499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4805499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4806499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4807499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4808499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4809499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4810499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4811499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4812499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4813499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4814499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4815499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4816499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4817499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4818499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4819499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4820499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4821499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4822499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4823499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 48259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 48280211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 48339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 48349d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 48359d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 48369d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 48379d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 48389d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 48399d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 48409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 48419d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 48429d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48439d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 48449d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 48459d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48466dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48476dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48489d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 48499d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48509d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4873bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4874bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4875bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4876bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4877bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4878bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4879bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4880bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4881bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4882bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4884bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4885bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4905bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4910bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 49150a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 49160a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 49170a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 49180a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49200a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4926029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4927029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4928029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4929029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 49388c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 49398c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49408c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 49418c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4950079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 49558c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 49568c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49578c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 49588c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4968079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4980539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4982539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 49839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 49849d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 49859d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 49861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 49879d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49889d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5000029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 50012a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 50022a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 5003079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 5004079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5005079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 5006079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 5007079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 5008079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 50092a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 5010079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5011079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 5012029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5013029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 5015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 50174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5053ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5054ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5055ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 50844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5092637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51134e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 51144e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 51158d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 51168d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 51174e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 51188d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5119becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5120becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5121becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 51224e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51238d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 51244e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 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 } 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 52204032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 52214032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 52224032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 52293c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 524014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 524114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 524214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 524314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 524414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 524514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 524614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 524714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 524814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 524914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 525014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 525114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 525214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 525314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 525414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 525514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 525614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 525714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 525814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 525914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 526014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 526114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 526214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 526314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 526414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 526514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 526614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 526714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 526814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 526914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 527014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 527114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 527214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 527314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 527414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 527514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 527614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 527714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 527814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 527914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 528014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 528114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 528214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 528314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 528414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5288ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5289ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 529114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 529214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 529314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5295539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5296539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5297539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 529814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 529914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53070785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5310da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5311da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5312da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5313da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5314da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5315da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 53160785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5317ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 53180785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 53190785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5320ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5321ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 53220785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 53230785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 53240785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53250785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 53260785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 53270785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 53280785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5421079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 542543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 542643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 542743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 542843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 542943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 543043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 543143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 543243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 543343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 543443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 543543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 543643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 543743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 543843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 543943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 544024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 544143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 544243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5446d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 54584df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5459b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5465b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 546924443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5472b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55184e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 55194e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 55204e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 55214e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 55224e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 55234e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 55244e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 55274e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 55284e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5549b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 556583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 55668d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 55678d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5568b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5569b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5570b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5571b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 557283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 557383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 557483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 557583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 557683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 557783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5583cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5587b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5592105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5614b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5615b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5616b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5617b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5618c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5619c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5620c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5621c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5622c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 56231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 56241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 56251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 56261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 56271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 56291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 56301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 56311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 56321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 56341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 56361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 56371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 56381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 56391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 56401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 56411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 56421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 56431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 56441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 56461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 56481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 56501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 56521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 56531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5654c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 56551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 56561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 56581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 56601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 56611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 56621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5663c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5664c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5665b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5667b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5668b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5669b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5670b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5671b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5672b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5673b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5674b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5676b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 56854df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 56864df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5689b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5690b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5691b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5692b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5693b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5694105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5705d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 573724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 574243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 57511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 57581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 57591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5762c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 57711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 57891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5802aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5803aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5804aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5805aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5806aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5807aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58535be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 58545be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 58555be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 58565be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 58575be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 586252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 586352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 586452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 586552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 586652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 586752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 586852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 586952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58787b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 58969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 589713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5901c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 591913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5920499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5921499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5922499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5923499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5924499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 59259b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 59269b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 59273ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 59283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 59293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 59303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 59313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 59323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 59333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 59349b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 59352148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 59369b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5937499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5938499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5939499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5940499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 59412148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 59422148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 59432148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 59442148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 59452148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 59462148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 59472148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 59482148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5949499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5950499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 595116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5952499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5953499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 59542148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 59552148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 59562148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 59572148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 595816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5959fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5960fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 596116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5962499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 596316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5964499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5965499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5966499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5967499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5968499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5969499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5970fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5971fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5972fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5973fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5974fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5975499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5976499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5977499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5978b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5979b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 5980b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 5981b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 5982b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 5983b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 5984b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5985b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5986b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 5987b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 59889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6002b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6003b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6004b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6005b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6006b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6007b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6008b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6009b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6010b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6011b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6012b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6013b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6014b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6015b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6016b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6017b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6018b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6019b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 60909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6097bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 60989bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 60999bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 61009bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 61044df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 61054df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 61064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 61074df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 61084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6109bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 61104df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 61114df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 61120bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 61130bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 61140bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 61150bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 61160bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 61170bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 61180bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 61190bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6120bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 61210bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 61220bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6123079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6124079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6125079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6126079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6127079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6128079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6129079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6130539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6131539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6132539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6133539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6134539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 61359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 61409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 61419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 61449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 61459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 61469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 61499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 61509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 61559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 61569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 61579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 61599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 61609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 61659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 61669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 61689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 61709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 61749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 61789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 61809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 61819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 61839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 61849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 61879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 61899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 61929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 61939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 61949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 61959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 61979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 62029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6207539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6208539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6209539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6210539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 62239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6225f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6226f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6227f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6228f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6229f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6230f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6231f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6232f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6233f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6234f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6235f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6236f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6237f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6238f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6239f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6240f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6241f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6242539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6243539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6244539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6245539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6246539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6247539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6248f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 62490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 62509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 62519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 62529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 62569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 62589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 62599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 62619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 62629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 62669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 62679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 62689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 62699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 62709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 62719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 62849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 62859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 62899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 62919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 62949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 62959c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 62979c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 63004df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 63189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 63199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 63219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6323539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6324539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6325539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6326539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6327539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6328539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6329539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6330539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6331539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6332539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6333539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6334539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6335539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6336539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6337539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6338539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6339539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6340539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6341539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6342539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6343539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6344539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 63479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 63499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6350079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 63519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 63539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6354079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 63559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 63589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6361539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 63629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 63649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6365079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 63669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 63679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 63689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6371539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6372539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 63749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 63759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6376539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6377539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6378539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6379539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6380539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6381539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6382539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6383539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6384539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6385539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6386539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6387539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6388057a585fba01d92c38f27a8c080622dfd0c6f556Adam Powell scrap.dispatchStartTemporaryDetach(); 6389539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 63909b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 63919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6394539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6401c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 64039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 64049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6408539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6409539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6410539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6411539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6412539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6413539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6414539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6415539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6416539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6417539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6418539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6419539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6420539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6421539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 64229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 64309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6431a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 64329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 64339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6434079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6435079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6436079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6440539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6441539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6443539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6444539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 64459b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 64469b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6447539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6448539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6449539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6450539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6451539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6452539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 64549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 64579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 64589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6459a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6460079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 64619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 64629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6463c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 64649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 64659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 64669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 64719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 64759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 64769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 64789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 64799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 64809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 64819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 64829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 64839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 64849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 64859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 64869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 64879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 64889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6490bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6491bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6492bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6493bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6494bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6495bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6496bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6497bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6498bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6499bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 65009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 65109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 65119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 65139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 65149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 651752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 651852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 651952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 652052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 652152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 652252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 652352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 652452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 652552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 652652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 652752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 652852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 652952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 653052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 653152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 653252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 653352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 653452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 653552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6536266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 653752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 653852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 653952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 654052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 654152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 654252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 654352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 654452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 654552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 654652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 654752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 654852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 654952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 65509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6551079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6552079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6553079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6554079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6555079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6556079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6557079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6558079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6559079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6560079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6561079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6562079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6563079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6564079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6565079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6566079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6567079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6568079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 65699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6570