AbsListView.java revision 539ee8716b4f81260bab2e9f3dc5d88d81c99985
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 91539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 92539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 24214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 24314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 24414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 24614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 264499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 265499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 266499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 268499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 269539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 270539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 271539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 272539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 273539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2742148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2752148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2762148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2772148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2782148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 289079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 290079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 291079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 292079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 293079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3490211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4730b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 48414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 48514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 48614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 48714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 48814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 48914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5061cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 535d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 536d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 537d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 538d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 539d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 566d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 568d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5736dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5746dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5754296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5764296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 57721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 57921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 58224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 58324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5966dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 61389935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 61889935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 640da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 641da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 642da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 643da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 644da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 64507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 64607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 64707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 6484e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6494e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6504e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 651da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 652b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 653b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 654a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 655b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 656b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 657ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 658ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 659ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 660ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 661ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 710e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 711e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 712e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 713e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 714e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 715e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 716e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 717e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 718e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 719e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 720e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 721e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 722e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 723e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 724e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 725e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 777f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 77820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 77920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 780f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 784d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 785d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 786df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 787d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 788d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 789d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 790d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 791d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7924296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7934296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7944296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7954296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 799d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 800d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 80789935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 80889935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 823539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 824539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 82614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 92114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 96814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 100014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1019bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 103014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1043bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 105214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1065bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1066bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1067bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 110114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11322bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11332bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11354ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11364ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11410a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 116620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 117020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 117120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 117320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 117420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 117520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 117620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 117920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 118020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 118120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 118220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 118320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 118420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 118520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 118620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 118720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 118820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 119020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 119120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 119220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 119320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 119420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 119520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 119720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 119820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 119916bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 120020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 120120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 120220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 120320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 120420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 120520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12860a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1289a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 12904e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 12914e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 12924e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 12934e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 12944e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1295d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1296d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1297d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1298d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 12994e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov return; 13004e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1301d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1302d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13034e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13044e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13054e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13064e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13074e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13088a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13098a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13108a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13118a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13128a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13138a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13148a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13158a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13168a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13178a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 13188a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13198a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13846bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1440a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 14412614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1442f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 144314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1463a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14642614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1465f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 146643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 146743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 146814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 146943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 147043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 147143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 147243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 147314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1474f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1486a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 14872614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1488f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 148943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 149043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 149143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 149243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 149343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 149414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1506f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1526f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 153699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15477becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 15487becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 15497becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 15507becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 15517becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 15527becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 15537becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 15547becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 15557becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 15567becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 155999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 156099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 156199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 156299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 156399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 156499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1583a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1584a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15859a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 15869a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 15879a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 15889a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 158914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 15909a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 15919a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 15929a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 15939a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 15949a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 15959a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 15962614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1597f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1620079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1630f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1631f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1632f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1633f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1634f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1635f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1636f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1637f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16382614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 16392614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1640a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1641a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1642a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1643a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1644a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1649d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1650d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 16560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1696b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1697b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1698b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1699b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1700b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1701b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1702b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1727079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17710b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 17720b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17920b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 17930b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 17940b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17990b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 18000b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 18010b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 18020b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1851da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1852da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1853da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1854da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1855ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1856da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1857da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1858ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1859da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1860da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1863d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1864d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1865d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1866d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1871f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1872f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1873f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1874f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1875f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1876f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1877f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 18782c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 18792c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 18802c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 18812c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1882f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1896d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1897d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1898d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1899d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1900d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1901d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1902d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1903d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1909d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1910d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1911d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 201421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 201521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 20164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 201921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 202021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2023539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2024539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2025539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2026539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2027539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 2038539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mAdapterHasStableIds) { 2039539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell LayoutParams lp = (LayoutParams) child.getLayoutParams(); 2040539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (lp == null) { 2041539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2042539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2043539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.itemId = mAdapter.getItemId(position); 2044539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2052079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 206021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2061a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2062a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2078079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2079079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2080079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2081079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2082079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2085e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2086e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2087e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2094a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2095079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2096079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 213720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 213820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 213920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 214020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 214120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 214220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 214320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 214420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 214520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 214620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 214720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 214820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 214920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 215020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 215120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 215220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 215320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 215420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 215520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 215620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 215720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 215820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 215920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 216020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 216120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2167d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2200079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2244079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2262df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2263df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2264df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2265df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2269079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2273ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2274ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2275ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2276ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2283df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2284df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2304079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2305079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2306079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2307079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2308079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2309079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2310079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2311079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2312079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2313079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2317079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2360e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2361e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2362e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2363e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2364e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2365e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23700e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 23710e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 23720e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 237582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 237682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 237782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 23786a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 23796a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 23806a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 23816a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 23826a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 238382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2384b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23911f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 23921f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 23931f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 239421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 239521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 239621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23980e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 23990e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 24000e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeGlobalOnLayoutListener(this); 24010e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 240382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 240482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 240582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 240682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 240782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 24081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 24091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 24101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 24111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 24121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 24131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 24141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 24151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 24161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 24171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2418d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2419d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2420d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2421d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2422d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2423d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 24244032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2425d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2426d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2427d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2428d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2429d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2430d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2431d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2432d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2433d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2434d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2435d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2436d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2437d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2438d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2439b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2450670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2451670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2452670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2453670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2454670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 24554032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 24564032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 24574032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 24600fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2463458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2464670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 247397566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 25190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2537005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2538005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2539005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2540005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2541005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 25427890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 25437890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 25447890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 25457890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 25467890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 25477890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25988350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2600f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2601f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 26021e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 26031e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2604f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 26051e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2606f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2607f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2608f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2610f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2630fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2631fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2632fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2633fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2634fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2635fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2636fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2637fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2638fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2639fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2640fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2641fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2642fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2643fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2644fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2669df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2670df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2671df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2672df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2673df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2678dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2679dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2680dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2681df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2682dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2684dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 268645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 268745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 268845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 268945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2693dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2760079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2761079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2762e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 279878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 280378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 280478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 280578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 280678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 280778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 280878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 280978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 282513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 282613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 282713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 282813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 282978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 283678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 283778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 283878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 283978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 284078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 284178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 284278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 284378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 284478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 284578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 284678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 284778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 284878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 284978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 285078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 285178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 285278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 285378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 285478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 285578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 285678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 285778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 285878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 285978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 286078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 286178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 286278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 286378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 286478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 286578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 286678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 286778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 286878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 286978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 287078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 287178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 287278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 287378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 287478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 287578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 287678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 287778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 287878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 287978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 288078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 288178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 288278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 288378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 288478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 288578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 288678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 288778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 288878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 288978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 289078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 289178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 289278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 289378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 289478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 289578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 289678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 289778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 289878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 289978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 290078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 290178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 290278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 290378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 290478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 290778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 290878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 290978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 291078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 291178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 291278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 291378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 291478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 291578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 291678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 291778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 291878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 291978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 292078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 292178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 292278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 292778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown invalidate(); 292878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 293078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 293178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 293278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 293378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 293478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 293578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 293678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 293778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 293878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 293978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 294178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 294278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 294378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 294478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 294578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 294678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 294778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 294978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 295078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 295178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 295278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 295378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 295478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 295578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 295678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 295778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 295878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 295978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 296078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 296178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 296278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 296378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 296478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 296578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 296678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 296778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown invalidate(); 296878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 296978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 297178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 297278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 297378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollY = 0; 297478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown invalidateParentIfNeeded(); 297578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 297678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 297778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 297878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 297978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 298078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 298178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 298278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 298378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 298478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 298578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 298678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 298778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 298878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 298978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 299078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 299178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 299278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 299478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 299578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30111e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3017637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30184032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 30194032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 30204032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 30240fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3034dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3035dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3036dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3037dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3038dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3039dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 304682f3495b146b267f3786997752cef25310176349Romain Guy 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 305113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 30594032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 30604032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 30614032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3063044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3067044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 30790a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 30800a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 30810a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3087637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3092637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30979d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 309879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 30999d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3112fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3113fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3114fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3115fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3116fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3117fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 31222585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 31232585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 31242585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 31252585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 31262585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 31274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 313478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3151498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3152498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3153498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3154498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3155498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3177005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3178005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3182079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 31876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3190d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3191d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3192d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3193d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3194d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3196079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3200d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3203d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3204d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3205d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3206005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3207005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3208079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3211005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3212d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3216079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 32196198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 32206198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 32266198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 32286198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 32296198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32306198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 32316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 32326198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 323421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 323521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 32456198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 32466198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 32476198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 32486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 32494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32506198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3251f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3252f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3253f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3254d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3255d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3256d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 32574032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32584032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32594032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 32606198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 326679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3279637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3280637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3281637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3282637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3283637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 32870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3289637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3291637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 32950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 330113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 33024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 33121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 33131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 33141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 33151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3320637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3332637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3334637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3336637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3339637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3340637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3341637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3345637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 334613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 33544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 33584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 33594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 33604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 33614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 33624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 33634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 33644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 33654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 33664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 33674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 33694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33719bc30d31322848d61f518c1db43544988faaba8fAdam Powell 33729bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 33739bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 33749bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 33759bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 33769bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 33779bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 33789bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 33799bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 33809bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 33819bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 33829bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 33839bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 33849bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 33859bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 33869bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 33879bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 33889bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33899bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 33909bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 33919bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33980a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 33990a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 34000a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 34010a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 34020a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 34030a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 34040a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3407637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3408637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 340933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 341033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 341133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 341233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 341333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 341433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 341533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 341633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3417275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 341833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 341933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 342033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 342133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 342233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 342333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 342433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 342533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 342633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 342733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 342833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3431637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3432637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3433637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3434637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 343507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 343607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 343707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3438637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 343907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(leftPadding, 34407d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3441a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3442637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3443637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3445637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3447637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3448637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 344907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 345007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 345107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 345407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(-width + leftPadding, 34557d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 3456e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3457a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 347807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 347907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 348007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 348107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 348207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 348307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 348407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 348507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 348613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 348713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 348813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 348913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 349013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 349113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 349213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 349313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 349413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 349513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 349613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 349713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 349813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 349913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 350013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 350113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 350213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 350313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 350413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 350513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 350613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 350713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 350813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 350913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 351013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 351113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 351213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 351313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 351413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 35190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 352979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3530637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3531637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 35364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 35374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 35384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 354079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 355213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 355313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 355479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 35554b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 35564b4f40f84e72579417604143e5f42115769649b8Romain Guy } 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 35632585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 35642585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 35652585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 35662585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 35672585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 35684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 356913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 357013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 357178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 357913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 358313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 35894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 35904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 35984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 35994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 36004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 36014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 36024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 36034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 36044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 36054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 36064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 36074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 36094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 36104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 36460046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3668d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3669d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3670d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3671d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3673d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3674d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3675d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3676d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3677d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3678d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3679d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3680b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3681b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3682d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3683d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3684d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3685d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3686d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3687b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3688d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3689d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3690d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3691d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3692d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3693d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 369479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 37131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 37141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 37151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3718637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3719637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3720637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3721637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3722637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3723637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3725e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3730044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3731044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37494032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 37504032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 37514032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 37524032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 37534032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3756637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3757637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3758637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3767d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 377079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3771d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 377221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 377321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 377421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3775d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 37765e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 37775e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 37785e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 37795e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 37805e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3781d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3782d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3783d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3784d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 378879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 378979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3790d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3793d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3794d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3795d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3796d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3797d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 37997f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 38007f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 38017f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 38027f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 380379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 380479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 380579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 380679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3808637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3832d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3836d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38533cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 38543cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 38553cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3861637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3871d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3885044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 3886044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 3887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3889044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 3890044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 3891044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 3892044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 3893044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 3894044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3895044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 3896044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 3897044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 3898044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 3899044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 3900044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3915458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 39174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3922e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 39234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 392952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3930e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3931e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 39324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 39384032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 39394032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 39424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39434bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 39444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 39634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 39684032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 39694032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 39774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39784bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3979fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3995fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 4003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 40244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4027e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4028e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4029322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4030322171b333a1c796fcc1428a96ea1d854a3881faErik } 4031322171b333a1c796fcc1428a96ea1d854a3881faErik 4032322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 40334032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 40344032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4035e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 4036e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4037e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4038e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4039e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4040e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4041e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4042371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 4043371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4044e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 40454bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4046e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 4047e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 4048e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 4049e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 4050e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4051e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4052e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4053322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 4054e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4055e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4056e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4057371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 40584ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 4059322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 4060322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 4061371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4062234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4063e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4064e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4065e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4069e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4071371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 4072371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 4073371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 4074371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 40774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 40824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 40840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 40850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4090458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4097029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 4098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4099029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 4100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 41037e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 4104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4111029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 41124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4113029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4114029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 4128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 41297e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 4131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 4132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 41374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 4138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 4139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 41520b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 41530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 41540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 4156029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4158029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 41627e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4185458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 41867e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 4187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 4188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 4191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 4193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 4194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4199e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4200234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4201234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 4202234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 4203234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4204234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4205e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4206371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4207234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4208234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4209e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4210371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4211e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 42124032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4213e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 42144032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 42154032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 42164032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 42174032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 42184032252c997be9f5d013054dc23ace855007b3a5Adam Powell 42194032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 42204032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 42214032252c997be9f5d013054dc23ace855007b3a5Adam Powell 42224032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 42234032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 42244032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (-getHeight() * modifier), mScrollDuration); 4225e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4226e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 42274032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (getHeight() * modifier), mScrollDuration); 4228e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4229e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4230e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4231e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4232234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 4233234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 4234234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 4235e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4236e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4237e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4238e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 42464bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 42474bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 42484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 42494bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 42504bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 42514bede9e425875542976a422222510fa4056a8339Romain Guy */ 42524bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 42534bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 42544bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 42554bede9e425875542976a422222510fa4056a8339Romain Guy } 42564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 42574bede9e425875542976a422222510fa4056a8339Romain Guy } 425821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 425921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 426021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 426121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 42624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 426321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 426421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 426521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 426621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 426721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 42684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42694bede9e425875542976a422222510fa4056a8339Romain Guy /** 4270458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4280322171b333a1c796fcc1428a96ea1d854a3881faErik 4281322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4282322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4283322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4284322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4285322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4286322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4287322171b333a1c796fcc1428a96ea1d854a3881faErik * 4288322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4289322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4290322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4291322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4292322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4293322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4294322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4295322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4296322171b333a1c796fcc1428a96ea1d854a3881faErik } 4297322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4298322171b333a1c796fcc1428a96ea1d854a3881faErik } 4299322171b333a1c796fcc1428a96ea1d854a3881faErik 4300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4301e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4302e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4303e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4304e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4305e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4306e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4307e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4308e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4309e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4310e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4311e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4312e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4313e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4314e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4315e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4316e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4317e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4318e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 43224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43434032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4344299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 43454032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 43464032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 43474032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 43484032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 43494032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 43504032252c997be9f5d013054dc23ace855007b3a5Adam Powell 435179303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 43524032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 43534032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 43544032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 43554032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 43564032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 43574032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 43584032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 43594032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 43600046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4361299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 4362299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4365499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4366499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4367499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4368499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4369499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4370499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4371499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4372499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4373499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4374499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4375499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4376499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4377499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4378499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4379499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4380499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4381499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4382499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4383499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4384499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4385499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4386499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4387499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4388499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4389499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4390499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4391499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4392499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4393499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4394499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4395499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4396499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4397499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4398499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4399499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4400499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 44050211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 44106dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 44116dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 44126dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 44136dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 44140211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = false; 44156dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 44166dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 44176dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 44186dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 44196dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 44206dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 44216dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 44226dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 44236dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 44246dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44266dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4448bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4449bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4450bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4451bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4452bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4453bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4454bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4455bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4456bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4457bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4459bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4460bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4480bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4485bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 44900a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 44910a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 44920a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 44930a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44950a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4497458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4501029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4502029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4503029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4504029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 45138c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 45148c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 45158c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 45168c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4520458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4525079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45368c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 45378c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 45388c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 45398c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4549079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4551458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4552458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4567539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4569539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4583029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 45842a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 45852a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4586079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4587079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4588079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4589079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4590079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4591079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 45922a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4593079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4594079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4595029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4596029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 46014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4637ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4638ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4639ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 46684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4678637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4679637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4680637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4681637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4682637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4683637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4684637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 46984e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 46998d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 47008d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 47014e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 47028d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4703becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4704becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4705becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 47064e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 47078d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 47084e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 48044032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 48054032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 48064032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 48133c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 482414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 482514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 482614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 482714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 482814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 482914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 483014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 483114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 483214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 483314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 483414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 483514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 483614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 483714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 483814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 483914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 484014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 484114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 484214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 484314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 484414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 484514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 484614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 484714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 484814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 484914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 485014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 485114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 485214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 485314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 485414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 485514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 485614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 485714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 485814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 485914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 486014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 486114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 486214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 486314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 486414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 486514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 486614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 486714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 486814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 4872ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 4873ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 487514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 487614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 487714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 4880539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 4881539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 488214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 488314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48910785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4894da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4895da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4896da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4897da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4898da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4899da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 49000785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 4901ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 49020785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 49030785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 4904ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 4905ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 49060785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 49070785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 49080785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 49090785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 49100785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 49110785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 49120785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5005079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 500943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 501043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 501143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 501243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 501343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 501443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 501543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 501643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 501743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 501843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 501943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 502043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 502143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 502243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 502343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 502424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 502543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 502643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5030d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 50424df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5043b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5049b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 505324443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5056b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51024e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 51034e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 51044e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 51054e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 51064e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 51074e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 51084e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 51114e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 51124e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5133b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 514983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 51508d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 51518d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5152b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5153b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5154b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5155b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 515683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 515783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 515883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 515983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 516083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 516183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5167cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5171b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5176105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5198b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5199b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5200b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5201b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5202c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5203c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5204c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5205c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5206c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 52071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 52081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 52091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 52101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 52111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 52121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 52131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 52141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 52151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 52161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 52181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 52191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 52201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 52211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 52221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 52231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 52241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 52251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 52261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 52271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 52281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 52301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 52321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 52341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 52351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 52361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 52371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5238c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 52391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 52401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 52421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 52441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 52451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 52461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5247c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5248c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5249b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 52500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5251b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5252b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5253b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5254b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5255b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5256b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5257b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5258b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 52590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5260b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 52694df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 52704df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5273b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5274b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5275b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5276b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5277b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5278105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5289d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 532124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 532643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 53351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 53421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 53431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5346c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 53551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 53731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 54315be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 54325be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 54335be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 54345be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 54355be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 544052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 544152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 544252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 544352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 544452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 544552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 544652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 544752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54567b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 547513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 549013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 549113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 549213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 549313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 549413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 549513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 549613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 549713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 549813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 549913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 550013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 550113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 550213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 550313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 550413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 550552964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 550613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 550713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 550813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 550913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 551013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 551113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 551213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 551313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 551413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 551513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 551613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 551713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 551813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 551913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 552013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 552113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 552213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 552313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 552413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 552513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 552613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 552713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 552813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 552913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 553013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 553113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 553213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 553352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 553413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 553513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 553613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 553713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 553852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 553913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 554013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 554113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 554213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 554313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 554413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 554513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5548637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5549637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5550637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5551637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 555313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5554499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5555499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5556499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5557499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5558499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 55599b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 55609b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 55613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 55623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 55633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 55643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 55653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 55663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 55673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 55689b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 55692148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 55709b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5571499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5572499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5573499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5574499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 55752148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 55762148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 55772148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 55782148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 55792148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 55802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 55812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 55822148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5583499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5584499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 558516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5586499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5587499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 55882148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 55892148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 55902148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 55912148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 559216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5593fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5594fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 559516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5596499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 559716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5598499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5599499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5600499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5601499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5602499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5603499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5604fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5605fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5606fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5607fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5608fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5609499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5610499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5611499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5612b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5613b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 5614b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 5615b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 5616b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 5617b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 5618b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5619b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5620b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 5621b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5636b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5637b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5638b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5639b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5640b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5641b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5642b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5643b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5644b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5645b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5646b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5647b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5648b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5649b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5650b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5651b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5652b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5653b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5655f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5656f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5657f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5658f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5659f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5660f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5661f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5662f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5663f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5664f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5665f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5666f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5667f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5668f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5669f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5670f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5671f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5672f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5673f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5674f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5675f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5677f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5678f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5679f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5680f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5681f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5682f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5683f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5684f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5685f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5686f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5687f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5688f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5689f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5690f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5691f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5692f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5693f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5694f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5695f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5696f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5697f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5698f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5699f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5700f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5701f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5702f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5703f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5704f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5705f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5706f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5707f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5708f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5709f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5710f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5711f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5712f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5713f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5714f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5715f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5716f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5717f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5718f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5719f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5720f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5721f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5722f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5723f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5731bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 57329bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 57339bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 57349bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57374df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 57384df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 57394df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 57404df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 57414df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 57424df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5743bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 57444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 57454df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 57460bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 57470bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 57480bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 57490bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 57500bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 57510bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 57520bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 57530bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5754bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 57550bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 57560bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5757079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5758079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5759079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5760079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5761079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5762079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5763079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5764539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 5765539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 5766539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 5767539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 5768539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5841539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 5842539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 5843539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 5844539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5859f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5860f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5861f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5862f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5863f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5864f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5865f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5866f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5867f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5868f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5869f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5870f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5871f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5872f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5873f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5874f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5875f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5876539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 5877539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 5878539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 5879539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 5880539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 5881539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 5882f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 58830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 58969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 58979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5908539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 5909539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 5910539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 59299c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 59319c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 59344df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 59419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 59429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 59449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 59459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 59479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 59489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 59499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 59509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 59559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5957539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 5958539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 5959539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 5960539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 5961539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 5962539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 5963539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 5964539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 5965539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 5966539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 5967539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 5968539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 5969539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 5970539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 5971539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 5972539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 5973539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 5974539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 5975539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 5976539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 5977539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 5978539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 59799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 59819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 59839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5984079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 59859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5988079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5995539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5999079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 60029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6005539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6006539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6010539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6011539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6012539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6013539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6014539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6015539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6016539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6017539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6018539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6019539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6020539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6021539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6022539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 60239b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 60249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 60259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6027539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 60289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 60299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 60309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 60329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 60359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 60369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6040539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6041539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6042539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6043539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6044539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6045539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6046539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6047539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6048539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6049539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6050539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6051539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6052539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6053539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 60549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 60559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 60579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 60589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 60599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 60609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 60629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6063a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 60649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 60659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6066079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6067079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6068079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6072539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6073539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6075539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6076539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 60779b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 60789b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6079539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6080539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6081539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6082539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6083539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6084539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 60859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 60899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 60909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6091a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6092079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 61169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 61179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 61189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 61199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 61209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 61219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 61229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 61239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 61339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 61349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 61359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 61399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 61409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 61419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 614452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 614552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 614652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 614752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 614852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 614952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 615052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 615152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 615252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 615352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 615452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 615552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 615652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 615752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 615852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 615952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 616052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 616152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 616252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6163266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 616452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 616552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 616652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 616752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 616852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 616952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 617052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 617152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 617252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 617352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 617452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 617552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 617652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6178079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6179079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6180079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6181079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6182079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6183079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6184079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6185079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6186079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6187079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6188079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6189079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6190079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6191079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6192079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6193079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6194079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6195079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6197