AbsListView.java revision 0061e16e538f800ff995ad05bc21cc7728f160e2
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; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 61a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 62c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 63a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 640b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 650b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 67b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 68b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 76d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 77d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 78d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 89f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 93499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 94499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 97539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 98539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we just received the touch event and we are waiting to see if the it is a tap or a 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 24814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 24914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 25014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 25214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 270499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 274499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 277539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 278539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 279539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2822148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2832148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2842148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 295079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 296079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 297079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 298079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 299079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3550211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4790b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 49014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 49114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 49214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 49314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 49414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 49514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 541d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 542d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 543d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 544d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 545d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 572d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 574d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5806dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 581161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 5824296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5834296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 58924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 59024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62089935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62589935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 647da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 648da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 649da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 650da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 651da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 65207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 65307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 655c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 656c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 657c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 658c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 659c1d7e770e123adfa992d013fa294693d077cbc78alanv 6604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 663da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 664b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 665b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 666a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 667b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 668b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 669ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 670ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 671ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 672ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 673ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6740b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 727e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 728e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 729e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 730e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 731e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 732e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 733e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 734e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 735e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 736e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 737e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 738e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 741e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 742e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 79520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 79620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 801d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 802d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 803df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 804d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 805d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 806d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 807d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 808d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8094296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8104296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8114296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8124296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 82489935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 82589935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 834d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 840539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 841539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 84314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 93814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 98514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 101714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1036bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 104029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 104814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1061bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 106329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 107114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 107729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 108029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 108129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 108229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1085bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1086bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1087bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 109329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 109629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 109729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 110129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 110229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 110329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 110429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 110529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 110629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 110729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 111029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 114314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11742bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11752bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11774ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11784ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 120520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 120820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 120920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 121420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 124116bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 125720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 125920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 126120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 126220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13280a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1331a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1332e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 13332dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov if ((focusableMode & FOCUSABLES_ACCESSIBILITY) == FOCUSABLES_ACCESSIBILITY) { 13342dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov switch(direction) { 13352dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov case ACCESSIBILITY_FOCUS_BACKWARD: { 13362dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov View focusable = (getChildCount() > 0) ? getChildAt(getChildCount() - 1) : this; 1337a90e4512ab81dcd8cdbefdd2ffa0de55fca1caa3Svetoslav Ganov if (focusable.isAccessibilityFocusable()) { 13382dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov views.add(focusable); 13392dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } 13402dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } return; 13412dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov case ACCESSIBILITY_FOCUS_FORWARD: { 1342a90e4512ab81dcd8cdbefdd2ffa0de55fca1caa3Svetoslav Ganov if (isAccessibilityFocusable()) { 13432dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov views.add(this); 13442dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } 13452dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } return; 1346e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1347e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1348b552d89e901225e2b6aa2602e874ab984c638415Svetoslav Ganov super.addFocusables(views, direction, focusableMode); 1349e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1350e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1351e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1352e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View focusSearch(int direction) { 13532dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov return focusSearch(this, direction); 1354e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1355e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1356e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1357e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View focusSearch(View focused, int direction) { 1358e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov switch (direction) { 1359e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov case ACCESSIBILITY_FOCUS_FORWARD: { 13602dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // If we are the focused view try giving it to the first child. 13612dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov if (focused == this) { 1362b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov final int childCount = getChildCount(); 1363b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov for (int i = 0; i < childCount; i++) { 1364b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View child = getChildAt(i); 1365b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (child.getVisibility() == View.VISIBLE) { 1366b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return child; 1367b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1368e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1369f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1370e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 13712dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // Find the item that has the focused view. 13722dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov final int currentPosition = getPositionForView(focused); 1373e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentPosition < 0 || currentPosition >= getCount()) { 1374f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1375e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1376e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to advance focus in the current item. 1377e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentItem = getChildAt(currentPosition - getFirstVisiblePosition()); 1378b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem.getVisibility() == View.VISIBLE) { 1379b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem instanceof ViewGroup) { 1380b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov ViewGroup currentItemGroup = (ViewGroup) currentItem; 1381b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View nextFocus = FocusFinder.getInstance().findNextFocus(currentItemGroup, 1382b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov focused, direction); 1383b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (nextFocus != null && nextFocus != currentItemGroup 1384b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov && nextFocus != focused) { 1385b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return nextFocus; 1386b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1387e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1388e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1389e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to move focus to the next item. 1390e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int nextPosition = currentPosition - getFirstVisiblePosition() + 1; 13913016c1ae6a05a67106301fc5ffd7779338288e65Svetoslav Ganov for (int i = nextPosition; i < getChildCount(); i++) { 1392b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View child = getChildAt(i); 1393b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (child.getVisibility() == View.VISIBLE) { 1394b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return child; 1395b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1396e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 13972dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // No next item start searching from the list. 13982dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov return super.focusSearch(this, direction); 1399f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov } 1400e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov case ACCESSIBILITY_FOCUS_BACKWARD: { 14012dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // If we are the focused search from the view that is 14022dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // as closer to the bottom as possible. 14032dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov if (focused == this) { 14042dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov final int childCount = getChildCount(); 1405b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov for (int i = childCount - 1; i >= 0; i--) { 1406b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View child = getChildAt(i); 1407b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (child.getVisibility() == View.VISIBLE) { 1408b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return super.focusSearch(child, direction); 1409b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1410f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov } 1411e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.focusSearch(this, direction); 1412e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 14132dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // Find the item that has the focused view. 14142dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov final int currentPosition = getPositionForView(focused); 1415e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentPosition < 0 || currentPosition >= getCount()) { 1416f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1417e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 14182dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov 1419e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentItem = getChildAt(currentPosition - getFirstVisiblePosition()); 14202dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov 14212dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // If a list item is the focused view we try to find a view 14222dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // in the previous item since in reverse the item contents 14232dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // get accessibility focus before the item itself. 14242dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov if (currentItem == focused) { 1425b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov currentItem = null; 1426b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov focused = null; 1427b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov // This list gets accessibility focus after the last item. 1428b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov final int previousPosition = currentPosition - getFirstVisiblePosition() - 1; 1429b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov for (int i = previousPosition; i >= 0; i--) { 1430b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View child = getChildAt(i); 1431b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (child.getVisibility() == View.VISIBLE) { 1432b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov currentItem = child; 1433b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov break; 1434b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1435b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1436b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem == null) { 14372dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov return this; 14382dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } 14392dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } 14402dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov 1441b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem.getVisibility() == View.VISIBLE) { 1442b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov // Search into the item. 1443b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem instanceof ViewGroup) { 1444b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov ViewGroup currentItemGroup = (ViewGroup) currentItem; 1445b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View nextFocus = FocusFinder.getInstance().findNextFocus(currentItemGroup, 1446b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov focused, direction); 1447b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (nextFocus != null && nextFocus != currentItemGroup 1448b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov && nextFocus != focused) { 1449b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return nextFocus; 1450b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1451e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1452b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov 1453b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov // If not item content wants focus we give it to the item. 1454b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return currentItem; 1455e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 14562dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov 1457b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return super.focusSearch(this, direction); 1458e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1459e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1460e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.focusSearch(focused, direction); 1461e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1462e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1463e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov /** 1464e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov * @hide 1465e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov */ 1466e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1467e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View findViewToTakeAccessibilityFocusFromHover(View child, View descendant) { 1468e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int position = getPositionForView(child); 1469e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (position != INVALID_POSITION) { 1470e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return getChildAt(position - mFirstPosition); 1471e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1472e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.findViewToTakeAccessibilityFocusFromHover(child, descendant); 1473e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1474e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1475e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 14764e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14774e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14784e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14794e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14804e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1481d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1482d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1483d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1484d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14859c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14864e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1487d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1488d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14894e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14904e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14914e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14924e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14934e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14948a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14958a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14968a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14978a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14988a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14998a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15008a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 15018a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 15028a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 15038a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1504fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1505fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1506fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1507fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1508fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1509fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1510fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1511a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1512a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1513a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1514a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1515a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 151648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 151748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 151848d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1519a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1520a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1521fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1522a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1523a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1524a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1525a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1526a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1527a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1528fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1529a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1530a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1531a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1532a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1533a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1534a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 153548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15368a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15378a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 16026bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1658a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16592614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1660f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 166114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1681a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16822614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1683f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 168443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 168543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 168614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 168743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 168843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 168943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 169043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 169114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1692f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1704a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 17052614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1706f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 170743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 170843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 170943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 171043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 171143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 171214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1725f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1744f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 175499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17657becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 17667becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 17677becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 17687becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 17697becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 17707becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 17717becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 17727becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 17737becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 17747becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 177799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 177899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 177999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 178099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 178199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 178299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1801a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1802a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18039a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 18049a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 18059a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18069a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 180714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 18089a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 18099a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 18109a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 18119a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18129a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18139a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18142614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1838079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18562614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18572614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1858a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1859a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1860a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1861a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1862a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1867d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1868d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 18740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1914b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1915b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1916b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1917b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1918b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1919b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1920b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1939161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1946079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19900b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19910b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20120b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20130b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2017637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20180b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20190b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20200b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20210b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2070da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2071da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2072da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2073da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2074ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2075da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2076da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2077ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2078da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2079da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2082d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2083d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2084d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2085d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2090f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2091f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2092f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2093f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2094f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2095f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2096f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 20972c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 20982c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 20992c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 21002c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2101f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2115d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2116d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2117d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2118d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2119d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2120d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2121d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2122d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2128d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2129d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2130d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 223321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 223421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 223821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 223921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2242539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2243539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2244539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2245539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2246539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22534213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22544213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22554213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22564213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2258079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 226221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2263a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2264a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 22684213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22694213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22704213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22714213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22724213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2278aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2279aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2280aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2281aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2282aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2283aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2284aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2285aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2286aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2287aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2288aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2289aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2290aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2291aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2292c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2293c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2294c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2295c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2296c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2297c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2298c1d7e770e123adfa992d013fa294693d077cbc78alanv 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2302c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2303c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2304c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2305c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2306c1d7e770e123adfa992d013fa294693d077cbc78alanv 2307c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23089c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 23099c3e0e68260fe50456996d75304b73054cbde94aalanv 23109c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 23119c3e0e68260fe50456996d75304b73054cbde94aalanv return; 23129c3e0e68260fe50456996d75304b73054cbde94aalanv } 2313c1d7e770e123adfa992d013fa294693d077cbc78alanv 23149c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 2315c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2316c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2317c1d7e770e123adfa992d013fa294693d077cbc78alanv 23189c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 23199c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 23209c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 23219c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 23229c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 23239c3e0e68260fe50456996d75304b73054cbde94aalanv } 23249c3e0e68260fe50456996d75304b73054cbde94aalanv 23259c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2326c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2327c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2328c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2329c1d7e770e123adfa992d013fa294693d077cbc78alanv 23309c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2331c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2332c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2333c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2334c1d7e770e123adfa992d013fa294693d077cbc78alanv 2335c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2336c1d7e770e123adfa992d013fa294693d077cbc78alanv 2337c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2338c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2339fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2340fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2341fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2342fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2343c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23449c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2345c1d7e770e123adfa992d013fa294693d077cbc78alanv 23469c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 23479c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2348c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2349c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2350c1d7e770e123adfa992d013fa294693d077cbc78alanv 23519c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 23529c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2353fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2354fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2355fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2356c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2357c1d7e770e123adfa992d013fa294693d077cbc78alanv 2358c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 23599c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 23609c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 23619c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 23629c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23639c3e0e68260fe50456996d75304b73054cbde94aalanv } 23649c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2365fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 23669c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 23679c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 23689c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23699c3e0e68260fe50456996d75304b73054cbde94aalanv } 23709c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2371fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2372fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2373c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2374c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2375fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2376fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2377fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2378c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2379c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2380fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2381c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2382c1d7e770e123adfa992d013fa294693d077cbc78alanv 2383fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2384c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2385c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2386c1d7e770e123adfa992d013fa294693d077cbc78alanv 2387079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2388079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2389079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2390079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2391079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2394e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2395e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2396e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2403a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2404079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2405079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 244620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 244720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 244820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 244920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 245020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 245120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 245220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 245320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 245420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 245520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 245620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 245720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 245820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 245920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 246020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 246120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 246220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 246320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 246420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 246520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 246620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 246720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 246820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 246920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 247020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2476d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2509079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2553079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2571df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2572df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2573df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2574df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2578079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2582ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2583ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2584ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2585ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2592df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2593df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2613079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2614079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2615079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2616079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2617079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2618079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2619079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2620079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2621079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2622079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2626079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2669e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2670e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2671e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2672e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2673e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2674e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26790e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 26800e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 26810e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 268482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 268582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 268682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 26876a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 26886a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 26896a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 26906a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 26916a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 269282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2693b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27001f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 27011f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 27021f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 270321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 270421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 270521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27070e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 27080e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 27099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 27100e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 271282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 271382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 271482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 271582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 271682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 27191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 27201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 27211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 27221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 27241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 27251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 27261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2727d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2728d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2729d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2730d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2731d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2732d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 27334032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2734d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2735d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2736d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2737d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2738d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2739d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2740d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2741d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2742d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2743d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2744d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2745d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2746d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2747d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2748b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2759670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2760670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2761670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2762670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2763670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 27644032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27654032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27664032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 27690fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2773670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 278297566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 28280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2846005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2847005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2848005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2849005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2850005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 28517890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 28527890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 28537890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 28547890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 28557890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 28567890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29078350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 29111e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 29121e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 29141e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2939fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2940fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2941fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2942fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2943fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2944fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2945fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2946fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2947fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2948fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2949fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2950fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2951fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2952fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2953fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2978df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2979df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2980df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2981df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2982df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2987dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2988dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2989dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2990df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2991dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2993dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 299545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 299645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 299745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 299845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3002dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3069079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3070079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3071e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 310478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 311278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 311378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 311478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 311578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 313413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 313513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 313613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 313713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 315178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 315278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 316378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 316978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 317778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 317878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 317978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 318078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 318278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 320378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 320478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 320578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 320678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 320778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 320878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 320978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 321078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 321178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 321278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 321378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 321678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 321778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 321878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 321978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 322078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 322178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 322278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 322378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 322578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 322678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3227a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 323078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 323178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3233a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 324578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 324678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 324778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 324878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 324978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 325178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 325278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 325378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 325478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 325578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 325678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 325778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 325978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 326078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 326178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 326278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 326378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 326478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 326578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 326678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 326778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 326878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 326978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 327078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3271a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 327278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 327378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 327478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 327578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 327678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3277a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 327978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 328278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 328378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 32849d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 32859d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 32869d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32899d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 32909d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 329178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 329278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 329378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 329478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 329578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 329678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 329778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 329878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 329978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 330078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 330178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 330278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 330478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 330578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33211e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3327637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33284032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33294032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33304032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3332637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 33340fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3336637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3344dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3345dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3346dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3347dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3348dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3349dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 33501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 33511fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 33521fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 33531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 336082f3495b146b267f3786997752cef25310176349Romain Guy 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 336513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 33734032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33744032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33754032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3377044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3378637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3381044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3392637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 33930a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 33940a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 33950a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3396637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3407637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3408637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3409637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34119d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 341279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 34139d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3415637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3416637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3417637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3418637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3419637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3420637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3421637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3422637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3423637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3424637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3426fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3427fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3428fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3429fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3430fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3431fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 34362585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 34372585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 34382585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 34392585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 34402585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 34426f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34436f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 34446f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 34456f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 34466f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 34476f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 34486f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 345578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 345978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3472498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3473498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3474498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3475498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3476498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3498005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3499005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3503079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 35086198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3511d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3512d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3513d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3514d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3515d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3517079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3521d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3524d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3525d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3526d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3527005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3528005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3529079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3532005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3533d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3537079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 35406198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 35416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3542637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 35476198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3548637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 35496198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 35506198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35516198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 35526198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 35536198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 355521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 355621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3557637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3559637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 35666198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 35676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 35686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 35704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35716198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3572f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3573f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3574f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3575d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3576d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3577d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 35784032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 35794032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 35804032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 35816198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 358779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 36080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 36160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 362213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 36331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 36341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 36351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 36361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 366713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 36754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 36794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 36804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 36814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 36824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 36834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 36844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 36854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 36864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 36874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 36884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 36904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36929bc30d31322848d61f518c1db43544988faaba8fAdam Powell 36939bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 36949bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 36959bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 36969bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 36979bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 36989bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 36999bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 37009bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 37019bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 37029bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 37039bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 37049bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 37059bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 37069bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 37079bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 37089bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 37099bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 37109bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 37119bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 37129bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37190a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 37200a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 37210a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 37220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 37230a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 37240a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 37250a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 373033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 373133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 373233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 373333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 373433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 373533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 373633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 373733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3738275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 373933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 374033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 374133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 374233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 374333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 374433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 374533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 374633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 374733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 374833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 374933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3752637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 375607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 375707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 375807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3759637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 37619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3762a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3763637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 37649d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3765a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 377107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 377207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 377307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 37779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 37789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3779e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3780a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 37829d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3783a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3784a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 380307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 380407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 380507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 380607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 380707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 380807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 380907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 381007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 381113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 381213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 381313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 381413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 381513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 381613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 381713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 381813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 381913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 382013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 382113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 382213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 382313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 382413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 382513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 382613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 382713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 382813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 382913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 383013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 383113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 383213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 383313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 383413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 383513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 383613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 383713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 383813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 383913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 38440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38451fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 38461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 38471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 38481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38550a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 385879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3861637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 38654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 38664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 38674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 386979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 388113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 388213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 388379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 38844b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 38854b4f40f84e72579417604143e5f42115769649b8Romain Guy } 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 38922585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 38932585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 38942585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 38952585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 38962585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 38974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 389813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 389913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 390078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 390813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 39114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 391213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 39184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 39194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 39204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 39274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 39284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 39294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 39304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 39314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 39324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 39334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 39344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 39354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 39364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 39384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 39394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 39750046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3997d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3998d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3999d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4000d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4002d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4003d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4004d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4005d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4006d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4007d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4008d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4009b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4010b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4011d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4012d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4013d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4014d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4015d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4016b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4017d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4018d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4019d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4020d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4021d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4022d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 402379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 402779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 40300b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 40341fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40421cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 40431cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 40441cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 40451cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40521fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4055e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 40600b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4061044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4062044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40804032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 40814032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 40824032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 40834032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 40844032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 40900b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 40930b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 40961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4099d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 410279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4103d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 410421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 410521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 410621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4107d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 41085e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 41095e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 41105e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 41115e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 41125e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4113d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4114d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4115d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4116d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 412079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 412179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4122d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4125d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4126d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4127d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4128d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4129d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 41317f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 41327f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 41337f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 41347f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 413579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 413679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 413779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 413879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4164d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4168d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 41779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 41789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4183637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41863cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 41873cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 41883cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 41939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 41951fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4204d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4218044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4219044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4222044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4223044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4224044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4225044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4226044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4227044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4228044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4229044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4230044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4231044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4232044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4233044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42361fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4248e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 42494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4254e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 42554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 426152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4262e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4263e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 42644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4269e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 42704032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42714032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4272aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4273aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4274161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4275aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4276aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4277aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4278161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4279aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4280aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4281aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4282e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4283e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4284e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4285e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4286e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4287e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4289e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42914bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42920061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42930061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 42940061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 42960061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 42970061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43000061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4304458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43090061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43131fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4316e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 43174032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43184032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4324aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4325aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4326161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4327aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4328aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4329aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4330161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4331aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4332aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4333aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4334e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4335e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4336e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4337e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4338e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4339e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4341e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43434bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43440061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 43450061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43520061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4357458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4359458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43610061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43680061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43780061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4379458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4382458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4385458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4386458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43870061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4393e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4394e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4395322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4396322171b333a1c796fcc1428a96ea1d854a3881faErik } 4397322171b333a1c796fcc1428a96ea1d854a3881faErik 4398aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 43994032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 44004032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4401aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4402aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4403aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4404161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4405aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4406aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4407aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4408161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4409aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4410aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4411aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4412aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4413aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4414aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4415aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4416aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4417aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 44181fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 44191fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 44200061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4421e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4422e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4423e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4424e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4425e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4426e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4427371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4428e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44294bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 44300061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 44310061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 44320061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 44330061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4434e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4435e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 44360061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 44370b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4438e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4439e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4440e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4441371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 44424ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 44430b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 44440b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4445371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4446234a5715309ea74757780aff6123e3144efb5b69Adam Powell 44471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4448e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4449e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4450e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4451e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4452e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4453e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4454e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4455e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4456e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4457e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4458e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4459e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4460e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4461e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4462e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4463e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4464e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4465e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4466e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4467e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4468e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4469e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4470e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4471e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4472e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4473e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4474e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4475e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4476e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4477e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4478e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4479e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4480e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4481e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4482e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4483e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4484e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4485e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4486e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4487e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4488e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4489e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4490e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4491e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4492e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4493e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4494e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4495e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4496e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4497e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4498e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4499e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4500e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4501e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4502e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4503e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4507e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 45114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 45164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 45170b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 45180b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45190b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4520458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45231fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45311fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 45321fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45341fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 45350b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4536458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45387e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 45391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4546029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 45474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4548029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4549029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4551458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4552458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45561fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 45631fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 45647e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 45660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45701fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 45730b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45821fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 45870b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 45880b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45890b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 45911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 45921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45940b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45987e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 45991fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4618458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 46211fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 46237e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 46240b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 46251fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 46300b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4636e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4637234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4638234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 46390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4640234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4641234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4642e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4643371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4644234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4645234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4646e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4647371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4648e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46494032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4650e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 46514032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 46524032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 46534032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 46544032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46554032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46564032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 46574032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 46584032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46594032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 46604032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 46610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 46620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46630b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46641fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4665e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 46660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 46670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46680b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46691fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4670e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4671e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4672e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4673234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 46740b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 46750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 46760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4677e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4678e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4679e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4680e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 46884bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 46894bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 46904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 46914bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 46924bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 46934bede9e425875542976a422222510fa4056a8339Romain Guy */ 46944bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 46954bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 46964bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 46974bede9e425875542976a422222510fa4056a8339Romain Guy } 46984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 46994bede9e425875542976a422222510fa4056a8339Romain Guy } 470021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 470121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 470221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 470321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 47044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 470521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 470621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 470721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 470821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 470921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 47104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 47114bede9e425875542976a422222510fa4056a8339Romain Guy /** 4712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4722322171b333a1c796fcc1428a96ea1d854a3881faErik 4723322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4724322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4725322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4726322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4727322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4728322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4729322171b333a1c796fcc1428a96ea1d854a3881faErik * 4730322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4731322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4732322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4733322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4734322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4735322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4736322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4737322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4738322171b333a1c796fcc1428a96ea1d854a3881faErik } 4739322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4740322171b333a1c796fcc1428a96ea1d854a3881faErik } 4741322171b333a1c796fcc1428a96ea1d854a3881faErik 4742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4743e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4744e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4745e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4746e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4747e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4748e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4749e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4750e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4751e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4752e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4753e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4754e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4755e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4756e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4757e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4758e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4759e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4760e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 47644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4773458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 47820b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 47830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 47840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 47850b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47894032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4790299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 47914032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 47924032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 47934032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 47944032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 47954032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 47964032252c997be9f5d013054dc23ace855007b3a5Adam Powell 479779303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 47984032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4799aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 48004032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 48014032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 48024032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 48034032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 48044032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 48054032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 48060046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 48070b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4808299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4811499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4812499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4813499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4814499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4815499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4816499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4817499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4818499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4819499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4820499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4821499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4822499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4823499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4824499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4825499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4826499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4827499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4828499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4829499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4830499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4831499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4832499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4833499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4834499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4835499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4836499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4837499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4838499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4839499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4840499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4841499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4842499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4843499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4844499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4845499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4846499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 48489d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 48510211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 48569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 48579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 48589d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 48599d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 48609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 48619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 48629d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 48639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 48649d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 48659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 48679d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 48689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48696dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48706dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48719d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 48729d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48739d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4896bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4897bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4898bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4899bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4900bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4901bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4902bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4903bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4904bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4905bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4907bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4908bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4928bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4933bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 49380a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 49390a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 49400a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 49410a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49430a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4944637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4950029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4951029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4952029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 49618c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 49628c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49638c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 49648c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4973079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 49788c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 49798c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49808c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 49818c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4991079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 5003539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 5004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5005539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 50069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 50079d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 50089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 50091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 50109d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 50119d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 5015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 5016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 5019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 5020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5023029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 50242a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 50252a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 5026079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 5027079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5028079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 5029079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 5030079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 5031079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 50322a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 5033079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5034079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 5035029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5036029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 5038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 50404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5076ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5077ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5078ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 51074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51364e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 51374e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 51388d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 51398d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 51404e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 51418d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5142becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5143becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5144becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 51454e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51468d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 51474e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 52434032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 52444032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 52454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 52523c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 526314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 526414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 526514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 526614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 526714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 526814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 526914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 527014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 527114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 527214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 527314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 527414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 527514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 527614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 527714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 527814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 527914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 528014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 528114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 528214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 528314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 528414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 528514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 528614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 528714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 528814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 528914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 529014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 529114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 529214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 529314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 529414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 529514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 529614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 529714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 529814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 529914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 530014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 530314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 530414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 530514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5311ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5312ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 531414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 531514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 531614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5318539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5319539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5320539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 532114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 532214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53300785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5333da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5334da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5335da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5336da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5337da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5338da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 53390785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5340ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 53410785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 53420785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5343ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5344ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 53450785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 53460785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 53470785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53480785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 53490785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 53500785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 53510785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5444079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 544843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 544943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 545043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 545143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 545243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 545343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 545443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 545543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 545643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 545743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 545843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 545943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 546043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 546143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 546243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 546324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 546443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 546543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5469d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 54814df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5482b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5488b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 549224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5495b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55414e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 55424e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 55434e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 55444e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 55454e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 55464e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 55474e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 55504e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 55514e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5572b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 558883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 55898d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 55908d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5591b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5592b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5593b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5594b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 559583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 559683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 559783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 559883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 559983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 560083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5606cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5610b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5615105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5637b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5638b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5639b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5640b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5641c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5642c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5643c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5644c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5645c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 56461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 56471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 56481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 56491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 56501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 56521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 56531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 56541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 56551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 56571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 56591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 56601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 56611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 56621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 56631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 56641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 56651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 56661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 56671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 56691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 56711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 56731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 56751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 56761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5677c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 56781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 56791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 56811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 56831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 56841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 56851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5686c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5687c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5688b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5690b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5691b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5692b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5693b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5694b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5695b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5696b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5697b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5699b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 57084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 57094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5712b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5713b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5714b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5715b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5716b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5717105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5728d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 576024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 576543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 57741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 57811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 57821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5785c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 57941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 58121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5825aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5826aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5827aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5828aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5829aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5830aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58765be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 58775be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 58785be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 58795be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 58805be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 588552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 588652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 588752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 588852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 588952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 589052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 589152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 589252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59017b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 592013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5924c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 594213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5943499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5944499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5945499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5946499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5947499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 59489b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 59499b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 59503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 59513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 59523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 59533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 59543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 59553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 59563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 59579b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 59582148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 59599b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5960499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5961499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5962499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5963499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 59642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 59652148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 59662148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 59672148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 59682148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 59692148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 59702148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 59712148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5972499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5973499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 597416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5975499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5976499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 59772148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 59782148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 59792148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 59802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 598116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5982fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5983fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 598416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5985499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 598616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5987499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5988499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5989499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5990499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5991499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5992499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5993fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5994fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5995fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5996fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5997fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5998499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5999499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6000499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6001b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6002b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6003b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6004b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6005b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6006b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6007b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6008b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6009b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6010b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 60119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 60139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 60169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 60179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 60199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 60229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 60239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6025b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6026b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6027b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6028b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6029b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6030b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6031b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6032b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6033b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6034b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6035b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6036b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6037b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6038b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6039b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6040b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6041b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6042b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 60439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 61169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 61189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 61199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6120bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 61219bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 61229bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 61239bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61264df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 61274df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 61284df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 61294df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 61304df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 61314df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6132bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 61334df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 61344df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 61350bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 61360bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 61370bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 61380bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 61390bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 61400bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 61410bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 61420bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6143bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 61440bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 61450bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6146079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6147079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6148079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6149079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6150079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6151079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6152079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6153539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6154539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6155539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6156539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6157539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 61589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 61599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 61609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 61679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 61689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 61699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 61789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 61799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 61809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 61839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 61859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 61879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 61889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 61899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 61939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 61979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 61989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 61999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 62239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 62259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 62279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 62299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6230539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6231539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6232539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6233539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 62379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 62399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 62409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 62419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 62429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 62449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 62459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 62469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6248f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6249f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6250f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6251f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6252f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6253f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6254f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6255f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6256f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6257f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6258f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6259f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6260f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6261f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6262f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6263f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6264f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6265539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6266539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6267539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6268539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6269539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6270539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6271f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 62720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 62739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 62749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 62829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 62849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 62859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 62899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 62909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 62919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 62929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 62939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 62949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6297539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6298539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6299539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 63189c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 63199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 63209c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 63219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 63229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 63234df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 63249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 63309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 63319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 63339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 63349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 63369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 63419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 63429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 63449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6346539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6347539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6348539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6349539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6350539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6351539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6352539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6353539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6354539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6355539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6356539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6357539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6358539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6359539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6360539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6361539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6362539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6363539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6364539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6365539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6366539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6367539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 63709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 63729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6373079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 63749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 63769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6377079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 63789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 63819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6384539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 63859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 63879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6388079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 63899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 63909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 63919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6394539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6395539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6399539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6400539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6401539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6402539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6403539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6404539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6405539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6406539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6407539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6408539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6409539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6410539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6411057a585fba01d92c38f27a8c080622dfd0c6f556Adam Powell scrap.dispatchStartTemporaryDetach(); 6412539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 64139b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6417539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 64229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6424c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6431539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6432539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6433539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6434539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6435539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6436539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6437539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6438539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6439539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6440539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6441539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6442539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6443539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6444539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 64519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6454a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 64569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6457079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6458079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6459079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 64609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 64629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6463539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6464539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 64659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6466539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6467539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 64689b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 64699b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6470539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6471539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6472539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6473539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6474539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6475539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 64769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 64779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 64809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 64819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6482a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6483079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 64849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 64859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6486c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 64879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 64889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 64899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 64949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 64989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 64999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 65019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 65059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 65099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 65109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 65119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6513bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6514bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6515bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6516bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6517bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6518bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6519bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6520bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6521bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6522bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 65239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 65279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 65299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 65309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 65319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 65339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 65349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 65359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 65369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 65379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 654052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 654152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 654252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 654352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 654452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 654552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 654652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 654752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 654852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 654952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 655052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 655152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 655252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 655352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 655452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 655552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 655652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 655752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 655852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6559266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 656052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 656152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 656252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 656352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 656452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 656552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 656652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 656752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 656852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 656952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 657052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 657152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 657252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 65739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6574079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6575079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6576079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6577079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6578079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6579079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6580079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6581079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6582079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6583079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6584079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6585079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6586079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6587079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6588079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6589079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6590079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6591079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 65929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6593