AbsListView.java revision 1fa179ef41c06bd19da70fd9bf95741238791940
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; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 39539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 41079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 42f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 43637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 59a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 60a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 62b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 63b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 71d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 72d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 73d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 84f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 88499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 89499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 92539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 93539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 24314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 24414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 24514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 24714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 265499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 266499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 268499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 269499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 270539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 271539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 272539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 273539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2752148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2762148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2772148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2782148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2792148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 290079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 291079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 292079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 293079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 294079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3500211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4061fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4740b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 48514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 48614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 48714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 48814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 48914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 49014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 536d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 537d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 538d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 539d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 540d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 567d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 569d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5746dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5756dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5764296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5774296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 57821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 58324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 58424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 61489935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 61989935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 641da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 642da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 643da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 644da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 645da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 64607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 64707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 64807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 6494e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6504e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6514e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 652da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 653b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 654b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 655a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 656b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 657b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 658ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 659ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 660ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 661ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 662ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 711e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 712e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 713e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 714e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 715e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 716e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 717e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 718e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 719e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 720e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 721e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 722e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 723e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 724e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 725e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 726e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7710a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 778f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 77920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 78020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 781f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 785d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 786d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 787df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 788d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 789d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 790d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 791d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 792d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7934296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7944296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7954296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7964296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 800d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 801d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 80889935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 80989935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 818d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 824539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 825539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 82714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 92214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 96914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 100114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1020bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 102429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 103214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1045bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 104729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 105514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 106129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 106429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 106529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 106629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1069bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1070bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1071bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 107729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 107829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 107929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 108029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 108129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 108229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 108329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 108429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 108529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 108629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 108729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 108829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 108929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 109029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 109129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 109229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 109329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 109629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 109729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 112714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11582bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11592bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11614ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11624ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 119020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 119120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 119220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 119320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 119420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 119520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 119620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 119720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 119820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 119920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 120020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 120120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 120220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 120320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 120420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 120520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 120820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 120920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 121420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 122516bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 124120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12510a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13120a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1315a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 13164e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 13174e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 13184e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 13194e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 13204e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1321d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1322d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1323d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1324d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 13254e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov return; 13264e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1327d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1328d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13294e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13304e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13314e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13324e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13334e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13348a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13358a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13368a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13378a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13388a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13398a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13408a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13418a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13428a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13438a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 13448a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13458a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14106bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1466a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 14672614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1468f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 146914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1489a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14902614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1491f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 149243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 149343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 149414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 149543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 149643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 149743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 149843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 149914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1500f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1512a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15132614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1514f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 151543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 151643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 151743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 151843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 151943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 152014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1532f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1533f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1552f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 156299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15737becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 15747becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 15757becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 15767becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 15777becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 15787becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 15797becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 15807becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 15817becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 15827becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 158599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 158699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 158799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 158899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 158999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 159099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1610a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16119a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 16129a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 16139a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16149a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 161514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 16169a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 16179a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 16189a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 16199a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16209a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 16219a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16222614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1623f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1646079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1656f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1657f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1658f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1659f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1660f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1661f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1662f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1663f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16642614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 16652614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1666a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1667a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1668a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1669a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1670a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1675d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1676d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 16820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1722b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1723b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1724b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1725b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1726b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1727b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1728b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1753079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 17980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 18180b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 18190b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 18200b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 18250b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 18260b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 18270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 18280b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1877da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1878da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1879da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1880da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1881ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1882da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1883da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1884ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1885da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1886da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1889d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1890d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1891d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1892d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1897f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1898f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1899f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1900f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1901f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1902f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1903f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 19042c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 19052c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 19062c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 19072c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1908f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1922d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1923d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1924d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1925d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1926d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1927d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1928d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1929d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1935d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1936d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1937d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 204021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 204121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 20424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 204521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 204621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2049539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2050539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2051539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2052539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2053539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20654213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 20664213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 20674213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 20684213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2075079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 208321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2084a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2085a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 20894213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 20904213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 20914213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 20924213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 20934213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2103aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2104aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2105aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2106aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2107aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2108aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2109aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2110aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2111aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2112aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2113aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2114aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2115aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2116aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2120079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2121079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2122079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2123079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2124079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2127e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2128e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2129e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2136a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2137079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2138079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 217920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 218020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 218120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 218220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 218320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 218420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 218520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 218620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 218720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 218820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 218920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 219020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 219120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 219220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 219320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 219420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 219520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 219620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 219720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 219820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 219920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 220020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 220120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 220220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 220320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2209d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2242079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2286079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2304df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2305df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2306df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2307df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2311079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2315ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2316ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2317ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2318ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2325df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2326df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2346079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2347079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2348079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2349079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2350079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2351079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2352079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2353079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2354079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2355079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2359079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2402e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2403e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2404e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2405e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2406e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2407e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 24120e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 24130e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 24140e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 241782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 241882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 241982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 24206a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 24216a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 24226a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 24236a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 24246a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 242582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2426b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24331f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 24341f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 24351f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 243621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 243721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 243821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 24400e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 24410e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 24429d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 24430e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 244582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 244682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 244782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 244882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 244982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 24501cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 24511cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 24521cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 24531cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 24541cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 24551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 24561cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 24571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 24581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 24591cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2460d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2461d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2462d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2463d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2464d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2465d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 24664032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2467d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2468d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2469d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2470d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2471d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2472d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2473d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2474d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2475d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2476d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2477d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2478d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2479d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2480d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2481b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2492670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2493670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2494670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2495670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2496670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 24974032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 24984032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 24994032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 25020fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2506670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 251597566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 25610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2579005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2580005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2581005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2582005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2583005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 25847890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 25857890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 25867890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 25877890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 25887890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 25897890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 26030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26408350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2642f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2643f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 26441e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 26451e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2646f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 26471e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2648f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2649f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2650f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2652f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2672fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2673fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2674fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2675fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2676fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2677fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2678fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2679fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2680fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2681fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2682fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2683fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2684fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2685fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2686fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2711df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2712df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2713df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2714df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2715df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2720dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2721dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2722dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2723df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2724dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2726dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 272845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 272945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 273045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 273145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2735dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2802079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2803079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2804e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 283778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 284078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 284578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 284678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 284778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 284878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 284978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 285078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 285178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 286713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 286813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 286913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 287013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 287178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 287878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 287978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 288078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 288178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 288278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 288378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 288478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 288578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 288678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 288778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 288878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 288978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 289078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 289178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 289278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 289378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 289478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 289578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 289678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 289778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 289878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 289978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 290078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 290178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 290278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 290378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 290478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 290578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 290878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 290978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 291078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 291178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 291278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 291378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 291478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 291578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 291678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 291778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 291878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 291978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 292078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 292178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 292378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 292478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 292578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 292678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 292778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 292978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 293078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 293178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 293278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 293378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 293478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 293578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 293678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 293778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 293878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 293978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 294078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 294178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 294278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 294378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 294478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 294578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 294678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 294978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 295078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 295178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 295278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 295378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 295478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 295578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 295678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 295778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 295878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 295978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 2960a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 296178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 296278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 296378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 296478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 296578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 2966a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 296778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 296878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 296978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 297178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 297378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 297578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 297678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 297778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 297878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 297978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 298078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 298178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 298278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 298378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 298478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 298578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 298678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 298778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 298878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 298978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 299078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 299278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 299378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 299478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 299578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 299678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 299778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 299878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 299978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 300078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 300178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 300278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 300378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3004a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 300578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 300678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 300778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 300878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 300978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3010a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 301178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 301278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 301378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 301478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 301578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 301678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 30179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 30189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 30199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 302078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 30229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 30239d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 302478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 302578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 302678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 302778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 302878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 302978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 303078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 303178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 303278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 303378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 303478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 303578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 303678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 303778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 303878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 303978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30541e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3060637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30614032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 30624032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 30634032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 30670fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3077dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3078dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3079dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3080dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3081dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3082dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 30831fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 30841fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 30851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 30861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 309382f3495b146b267f3786997752cef25310176349Romain Guy 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 31064032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31074032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31084032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3110044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3114044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 31260a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 31270a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 31280a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31449d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 314579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 31469d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3159fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3160fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3161fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3162fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3163fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3164fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 31692585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 31702585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 31712585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 31722585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 31732585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 31744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3198498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3199498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3200498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3201498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3202498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3224005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3225005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3229079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 32346198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3237d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3238d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3239d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3240d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3241d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3243079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3247d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3250d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3251d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3252d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3253005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3254005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3255079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3258005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3259d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3263079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 32666198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 32676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 32736198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 32756198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 32766198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32776198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 32786198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 32796198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3280637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 328121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 328221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3283637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3287637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3289637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3291637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 32926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 32936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 32946198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 32956198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 32964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32976198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3298f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3299f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3300f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3301d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3302d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3303d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 33044032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33054032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33064032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 33076198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 331379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3315637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3320637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3327637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 33340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3336637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3339637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 33420a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 334813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 33494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 33591cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 33601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 33611cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 33621cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3373637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3392637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 339313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3396637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 34014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 34024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 34054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 34064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 34074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 34084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 34094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 34104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 34114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 34124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 34134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 34144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 34164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34189bc30d31322848d61f518c1db43544988faaba8fAdam Powell 34199bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 34209bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 34219bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 34229bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 34239bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 34249bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 34259bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 34269bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 34279bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 34289bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 34299bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 34309bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 34319bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 34329bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 34339bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 34349bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 34359bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 34369bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 34379bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 34389bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34450a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 34460a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 34470a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 34480a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 34490a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 34500a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 34510a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3454637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3455637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 345633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 345733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 345833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 345933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 346033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 346133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 346233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 346333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3464275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 346533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 346633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 346733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 346833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 346933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 347033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 347133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 347233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 347333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 347433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 347533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 348207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 348307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 348407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 34869d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 34879d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3488a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 34909d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3491a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 349707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 349807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 349907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 35039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 35049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3505e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3506a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 35089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3509a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3510a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3513637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3516637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3517637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3518637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3519637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3520637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3522637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3523637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3524637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 352907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 353007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 353107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 353207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 353307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 353407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 353507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 353607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 353713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 353813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 353913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 354013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 354113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 354213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 354313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 354413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 354513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 354613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 354713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 354813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 354913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 355013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 355113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 355213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 355313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 355413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 355513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 355613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 355713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 355813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 355913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 356013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 356113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 356213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 356313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 356413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 356513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 35700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35711fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 35721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 35731fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 35741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 358479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 35914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 35924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 35934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 359579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 360713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 360813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 360979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 36104b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 36114b4f40f84e72579417604143e5f42115769649b8Romain Guy } 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 36182585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 36192585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 36202585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 36212585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 36222585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 36234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 362413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 362513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 362678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 363413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 36374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 363813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 36444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 36454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 36534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 36544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 36554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 36564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 36574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 36584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 36594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 36604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 36614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 36624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 36644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 36654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 37010046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3716637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3723d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3724d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3725d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3726d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3728d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3729d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3730d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3731d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3732d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3733d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3734d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3735b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3736b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3737d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3738d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3739d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3740d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3741d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3742b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3743d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3744d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3745d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3746d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3747d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3748d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 374979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 375379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 37591fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37671cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 37681cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 37691cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 37701cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 37771fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3780e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3785044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3786044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 37891fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38044032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 38054032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 38064032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 38074032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 38084032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 38111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 38191fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3822d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 382579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3826d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 382721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 382821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 382921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3830d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 38315e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 38325e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 38335e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 38345e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 38355e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3836d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3837d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3838d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3839d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 384379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 384479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3845d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3848d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3849d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3850d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3851d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3852d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 38547f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 38557f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 38567f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 38577f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 385879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 385979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 386079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 386179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3887d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3889637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3891d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 39009d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 39019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 3902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39093cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 39103cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 39113cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 39169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 3917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 39181fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3927d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3941044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 3942044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 3943637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3944637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3945044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 3946044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 3947044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 3948044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 3949044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 3950044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3951044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 3952044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 3953044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 3954044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 3955044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 3956044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39591fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 39724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3977e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 39784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 398452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3985e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3986e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 39874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 39934032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 39944032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 39974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39984bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 39994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 4000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 4001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 4003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 4004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 40184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40191fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 40234032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 40244032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 40324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40334bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4034fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 4035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 4042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4050fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 4051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 4068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 40794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40801fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4082e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4083e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4084322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4085322171b333a1c796fcc1428a96ea1d854a3881faErik } 4086322171b333a1c796fcc1428a96ea1d854a3881faErik 4087322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 40884032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 40894032252c997be9f5d013054dc23ace855007b3a5Adam Powell 40901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 40911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4092e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 4093e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4094e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4095e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4096e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4097e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4098e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4099371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 4100371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4101e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 41024bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4103e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 4104e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 4105e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 4106e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 4107e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4108e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4109e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4110322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 4111e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4112e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4113e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4114371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 41154ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 4116322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 4117322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 4118371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4119234a5715309ea74757780aff6123e3144efb5b69Adam Powell 41201fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4121e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4122e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4126e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 41304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 41354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 41370b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 41380b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 41421fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 41501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 41511fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 41531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 41541fa179ef41c06bd19da70fd9bf95741238791940Adam Powell smoothScrollBy(scrollBy, mScrollDuration); 4155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 41577e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 41581fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4165029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 41664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4167029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4168029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 41751fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 41821fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 41837e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 4185458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 4186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 41891fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 41914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 4192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 4193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 42011fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 42060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 42070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 42080b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 42101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 42111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4213029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 4214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 42177e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 42181fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4225458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4226458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4227458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4233458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4234458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4235458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4238458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 42401fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 42427e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 42431fa179ef41c06bd19da70fd9bf95741238791940Adam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration); 42441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4255e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4256234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4257234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 4258234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 4259234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4260234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4261e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4262371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4263234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4264234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4265e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4266371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4267e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 42684032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4269e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 42704032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 42714032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 42724032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 42734032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 42744032252c997be9f5d013054dc23ace855007b3a5Adam Powell 42754032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 42764032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 42774032252c997be9f5d013054dc23ace855007b3a5Adam Powell 42784032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 42794032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 42804032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (-getHeight() * modifier), mScrollDuration); 42811fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4282e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 42834032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (getHeight() * modifier), mScrollDuration); 42841fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4285e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4286e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4287e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4288234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 4289234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 4290234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 4291e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4292e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4293e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4294e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 43024bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 43034bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 43044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 43054bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 43064bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 43074bede9e425875542976a422222510fa4056a8339Romain Guy */ 43084bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 43094bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 43104bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 43114bede9e425875542976a422222510fa4056a8339Romain Guy } 43124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 43134bede9e425875542976a422222510fa4056a8339Romain Guy } 431421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 431521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 431621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 431721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 43184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 431921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 432021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 432121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 432221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 432321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 43244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43254bede9e425875542976a422222510fa4056a8339Romain Guy /** 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4336322171b333a1c796fcc1428a96ea1d854a3881faErik 4337322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4338322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4339322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4340322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4341322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4342322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4343322171b333a1c796fcc1428a96ea1d854a3881faErik * 4344322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4345322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4346322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4347322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4348322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4349322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4350322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4351322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4352322171b333a1c796fcc1428a96ea1d854a3881faErik } 4353322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4354322171b333a1c796fcc1428a96ea1d854a3881faErik } 4355322171b333a1c796fcc1428a96ea1d854a3881faErik 4356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4357e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4358e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4359e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4360e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4361e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4362e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4363e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4364e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4365e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4366e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4367e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4368e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4369e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4370e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4371e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4372e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4373e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4374e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 43784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4379458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4381458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4382458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4385458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4386458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4396458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4398458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43994032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4400299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 44014032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 44024032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 44034032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 44044032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 44054032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 44064032252c997be9f5d013054dc23ace855007b3a5Adam Powell 440779303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 44084032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 44094032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 44104032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 44114032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 44124032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 44134032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 44144032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 44154032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 44160046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4417299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 4418299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4421499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4422499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4423499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4424499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4425499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4426499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4427499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4428499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4429499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4430499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4431499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4432499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4433499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4434499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4435499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4436499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4437499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4438499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4439499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4440499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4441499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4442499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4443499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4444499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4445499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4446499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4447499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4448499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4449499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4450499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4451499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4452499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4453499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4454499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4455499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4456499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 44589d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 44610211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 44669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 44679d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 44689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 44699d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 44709d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 44719d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 44729d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 44739d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 44749d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 44759d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 44769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 44779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 44789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 44796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 44806dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 44819d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 44829d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 44839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4506bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4507bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4508bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4509bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4510bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4511bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4512bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4513bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4514bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4515bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4517bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4518bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4538bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4539637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4540637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4541637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4542637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4543bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 45480a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 45490a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 45500a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 45510a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45530a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4559029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4560029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4561029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4562029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 45718c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 45728c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 45738c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 45748c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4583079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45948c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 45958c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 45968c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 45978c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4607079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4618458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4625539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4627539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 46289d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 46299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 46309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 46311fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 46329d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 46339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4636458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4637458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4641458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4645029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 46462a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 46472a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4648079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4649079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4650079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4651079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4652079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4653079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 46542a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4655079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4656079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4657029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4658029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 46624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4698ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4699ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4700ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 47294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47584e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 47594e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 47608d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 47618d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 47624e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 47638d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4764becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4765becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4766becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 47674e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 47688d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 47694e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 48654032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 48664032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 48674032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 48743c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 488514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 488614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 488714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 488814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 488914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 489014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 489114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 489214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 489314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 489414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 489514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 489614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 489714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 489814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 489914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 490014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 490114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 490214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 490314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 490414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 490514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 490614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 490714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 490814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 490914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 491014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 491114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 491214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 491314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 491414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 491514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 491614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 491714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 491814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 491914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 492014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 492114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 492214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 492314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 492414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 492514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 492614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 492714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 492814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 492914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 4933ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 4934ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 493614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 493714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 493814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4940539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 4941539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 4942539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 494314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 494414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49520785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4955da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4956da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4957da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4958da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4959da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4960da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 49610785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 4962ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 49630785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 49640785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 4965ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 4966ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 49670785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 49680785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 49690785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 49700785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 49710785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 49720785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 49730785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5066079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 507043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 507143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 507243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 507343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 507443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 507543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 507643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 507743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 507843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 507943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 508043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 508143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 508243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 508343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 508443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 508524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 508643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 508743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5091d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 51034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5104b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5110b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 511424443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5117b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51634e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 51644e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 51654e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 51664e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 51674e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 51684e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 51694e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 51724e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 51734e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5194b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 521083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 52118d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 52128d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5213b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5214b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5215b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5216b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 521783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 521883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 521983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 522083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 522183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 522283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5228cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5232b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5237105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5259b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5260b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5261b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5262b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5263c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5264c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5265c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5266c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5267c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 52681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 52691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 52701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 52711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 52721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 52731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 52741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 52751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 52761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 52771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 52791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 52801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 52811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 52821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 52831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 52841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 52851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 52861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 52871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 52881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 52891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 52911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 52931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 52951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 52961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 52971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 52981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5299c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 53001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 53011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 53021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 53031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 53041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 53051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 53061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 53071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5308c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5309c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5310b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 53110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5312b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5313b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5314b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5315b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5316b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5317b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5318b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5319b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 53200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5321b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 53304df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 53314df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5334b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5335b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5336b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5337b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5338b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5339105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5350d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 538224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 538743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 53961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 54031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 54041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5407c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 54161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 54341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5447aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5448aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5449aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5450aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5451aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5452aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 54985be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 54995be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 55005be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 55015be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 55025be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 550752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 550852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 550952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 551052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 551152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 551252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 551352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 551452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55237b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 554213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 555713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 555813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 555913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 556013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 556113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 556213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 556313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 556413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 556513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 556613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 556713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 556813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 556913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 557013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 557113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 557252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 557313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 557413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 557513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 557613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 557713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 557813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 557913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 558013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 558113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 558213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 558313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 558413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 558513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 558613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 558713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 558813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 558913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 559013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 559113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 559213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 559313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 559413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 559513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 559613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 559713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 559813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 559913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 560052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 560113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 560213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 560313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 560413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 560552964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 560613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 560713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 560813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 560913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 561013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 561113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 561213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 562013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5621499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5622499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5623499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5624499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5625499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 56269b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 56279b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 56283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 56293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 56303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 56313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 56323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 56333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 56343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 56359b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 56362148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 56379b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5638499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5639499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5640499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5641499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 56422148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 56432148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 56442148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 56452148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 56462148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 56472148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 56482148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 56492148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5650499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5651499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 565216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5653499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5654499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 56552148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 56562148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 56572148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 56582148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 565916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5660fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5661fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 566216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5663499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 566416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5665499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5666499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5667499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5668499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5669499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5670499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5671fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5672fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5673fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5674fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5675fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5676499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5677499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5678499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5679b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5680b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 5681b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 5682b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 5683b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 5684b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 5685b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5686b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5687b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 5688b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5703b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5704b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5705b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5706b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5707b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5708b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5709b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5710b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5711b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5712b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5713b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5714b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5715b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5716b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5717b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5718b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5719b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5720b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5722f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5723f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5725f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5726f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5727f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5728f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5729f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5730f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5731f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5732f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5733f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5734f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5735f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5736f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5737f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5738f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5739f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5740f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5741f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5743f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5744f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5745f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5747f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5748f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5749f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5750f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5751f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5752f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5753f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5754f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5755f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5756f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5757f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5758f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5759f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5760f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5761f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5762f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5763f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5764f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5765f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5766f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5767f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5768f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5769f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5770f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5771f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5772f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5773f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5774f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5775f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5776f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5777f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5778f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5779f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5780f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5781f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5782f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5783f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5784f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5785f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5786f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5787f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5789f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5798bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 57999bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 58009bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 58019bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58044df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 58054df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 58064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 58074df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 58084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 58094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5810bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 58114df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 58124df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 58130bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 58140bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 58150bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 58160bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 58170bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 58180bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 58190bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 58200bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5821bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 58220bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 58230bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5824079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5825079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5826079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5827079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5828079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5829079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5830079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5831539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 5832539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 5833539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 5834539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 5835539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 58969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5908539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 5909539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 5910539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 5911539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5926f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5927f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5928f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5929f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5930f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5931f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5932f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5933f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5934f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5935f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5936f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5937f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5938f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5939f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5940f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5941f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5942f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5943539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 5944539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 5945539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 5946539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 5947539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 5948539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 5949f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 59500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 59579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 59599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 59609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 59619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 59629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 59639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 59649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 59669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 59679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 59689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 59699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 59709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 59719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 59729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5975539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 5976539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 5977539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 59789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 59829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 59849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 59859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 59889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 59969c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 59989c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 60014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 60029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 60119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 60169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 60179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 60189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 60199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 60229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6024539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6025539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6026539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6027539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6028539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6029539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6030539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6031539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6032539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6033539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6034539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6035539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6036539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6037539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6038539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6039539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6040539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6041539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6042539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6043539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6044539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6045539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 60489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 60509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6051079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 60529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 60549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6055079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 60569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 60599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6062539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 60639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 60659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6066079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 60679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6072539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6073539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 60759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 60769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6077539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6078539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6079539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6080539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6081539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6082539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6083539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6084539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6085539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6086539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6087539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6088539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6089539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 60909b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 60929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6094539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6107539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6108539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6109539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6110539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6111539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6112539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6113539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6114539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6115539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6116539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6117539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6118539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6119539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6120539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 61219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 61229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6130a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 61329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6133079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6134079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6135079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6139539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6140539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 61419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6142539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6143539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 61449b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 61459b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6146539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6147539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6148539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6149539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6150539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6151539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 61529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 61539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 61569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 61579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6158a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6159079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 61609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 61619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 61679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 61689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 61699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 61709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 61799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 61809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 61839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 61849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 61859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 61869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 61879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 61889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 61899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 61909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 61929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 61989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 62029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 62089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 621152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 621252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 621352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 621452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 621552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 621652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 621752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 621852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 621952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 622052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 622152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 622252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 622352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 622452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 622552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 622652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 622752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 622852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 622952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6230266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 623152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 623252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 623352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 623452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 623552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 623652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 623752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 623852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 623952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 624052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 624152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 624252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 624352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 62449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6245079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6246079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6247079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6248079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6249079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6250079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6251079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6252079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6253079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6254079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6255079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6256079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6257079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6258079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6259079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6260079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6261079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6262079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6264