AbsListView.java revision 7e5e3745cf0103219a13071fbd488c3c01da85d9
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 1979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powellimport com.android.internal.R; 2079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3552964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 4779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 49b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 50b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 58d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 59d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 60d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnTouchModeChangeListener { 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 12479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 3220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 3700b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 3710b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 3950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 433d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 435d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 4391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 4406dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4416dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 4424296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 4434296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 44421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 44521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 44624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy 44724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 44824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 44924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 4504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 4514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 4524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 4534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 4544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 4554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 4564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 4574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 4584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 4594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 4604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 4614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 4626dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 5560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 562d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 566d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 567d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 568df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 569d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 570d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 571d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 572d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 573d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 5744296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 5754296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 5764296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 5774296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 578d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 579d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 5800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 581d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 5820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 5830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 5850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 6160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 6340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 7436bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter + "}"; 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 859f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 939d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 940d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 9460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 10540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 10740b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 10750b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 10760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 10770b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 10780b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 10790b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 10800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1131d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1132d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1133d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1134d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1139f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1140f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1141f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1142f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1143f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1144f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1145f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1146f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1158d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1159d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1160d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1161d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1162d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1163d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1164d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1165d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1171d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1172d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1173d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 127621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 127721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 127821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 128121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 128221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 131021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1311a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1312a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1383d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1478df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1479df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1480df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1481df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1490ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1491ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1492ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1499df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1500df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1574d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1575d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1576d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15841f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 15851f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 15861f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 158721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 158821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 158921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 1593d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 1594d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 1595d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 1596d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 1608670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 1609670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 1610670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 1611670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 1612670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 1613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 1614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 1615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 1616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 1617670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 162697566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 16720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1691005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 1692005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 1693005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 1694005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 1695005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 1696005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean performLongPress(final View child, 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1795df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 1796df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 1797df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1798df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 1799df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 1804dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1805dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 1806dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1807df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 1808dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 1810dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 181245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 181345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 181445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 181545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1819dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 19249d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (distance > mTouchSlop) { 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 19269d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 1967dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1968dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 1969dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 1970dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 1971dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1972dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 197982f3495b146b267f3786997752cef25310176349Romain Guy 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 19929d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mActivePointerId = ev.getPointerId(0); 19939d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int x = (int) ev.getX(); 19949d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int y = (int) ev.getY(); 19959d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell int motionPosition = pointToPosition(x, y); 19969d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (!mDataChanged) { 19979d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 19989d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell && (getAdapter().isEnabled(motionPosition))) { 19999d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 20009d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // click or a scroll. Assume it is a click until proven otherwise 20019d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_DOWN; 20029d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // FIXME Debounce 20039d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mPendingCheckForTap == null) { 20049d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mPendingCheckForTap = new CheckForTap(); 20059d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 20069d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 20079d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } else { 20089d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 20099d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // If we couldn't find a view to click on, but the down event was touching 20109d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 20119d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // code in ViewRoot to try to find a nearby view to select 20129d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell return false; 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20159d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 20169d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Stopped a fling. It is a scroll. 20179d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell createScrollingCache(); 20189d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 20199d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionCorrection = 0; 20209d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionPosition = findMotionRow(y); 20219d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 20229d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 202379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 202479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 20259d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 20269d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionPosition >= 0) { 20279d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Remember where the motion event started 20289d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 20299d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionViewOriginalTop = v.getTop(); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20319d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionX = x; 20329d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionY = y; 20339d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionPosition = motionPosition; 20349d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mLastY = Integer.MIN_VALUE; 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 20394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 20404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 206179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 20626198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 20646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 20666198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2069b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (atEdge && getChildCount() > 0) { 2070b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // Treat this like we're starting a new scroll from the current 2071b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // position. This will let the user start scrolling back into 2072b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // content immediately rather than needing to scroll back to the 2073b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // point where they hit the limit first. 2074b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell int motionPosition = findMotionRow(y); 2075b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (motionPosition >= 0) { 2076b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell final View motionView = getChildAt(motionPosition - mFirstPosition); 2077b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionViewOriginalTop = motionView.getTop(); 207879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2079b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2080b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionPosition = motionPosition; 2081b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 208279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 208379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 208479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 208579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2121005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2122005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 21316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2144005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2145005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2148005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2149005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 21556198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 21566198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 21576198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFirstPosition == 0 && getChildAt(0).getTop() >= mListPadding.top && 21586198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 21596198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getChildAt(childCount - 1).getBottom() <= 21606198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getHeight() - mListPadding.bottom) { 21616198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 21626198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 21636198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 21646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 21656198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 21664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 21676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 21686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (Math.abs(initialVelocity) > mMinimumVelocity) { 21696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 21706198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 21716198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 21726198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 217379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 21746198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2175f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2176f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2177f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 21786198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 218479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 21910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 22024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 22149d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_REST; 22159d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell setPressed(false); 22169d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 22179d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionView != null) { 22189d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionView.setPressed(false); 22199d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 22209d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell clearScrollingCache(); 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22229d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Handler handler = getHandler(); 22239d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (handler != null) { 22249d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 22259d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22279d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mVelocityTracker != null) { 22289d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker.recycle(); 22299d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker = null; 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 22324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 22334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 22344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 22354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 22364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 22374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 22384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 22394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 22404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 22414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 22424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 22434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 22444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 22454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 22464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 22474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 22484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22540a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 22599d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mFastScroller.draw(canvas); 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 22670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 227779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 227879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 22794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 22804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 22814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 22824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 228479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 229679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 22974b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 22984b4f40f84e72579417604143e5f42115769649b8Romain Guy } 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 23054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 23064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 23224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 23234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 23244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 23254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 23314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 23324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 23334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 23344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 23354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 23364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 23374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 23384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 23394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 23404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 23414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 23424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 23434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 23444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 23454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 23464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 23474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23979d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell private final Scroller mScroller; 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 240479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 24059d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mScroller = new Scroller(getContext()); 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 240879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2428458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2429458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2431458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 2437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 243879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 244679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 244779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 244979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 245079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 245179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 245279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 245379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 245479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24569d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Scroller scroller = mScroller; 245779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 245879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 246079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 246179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 246279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 246479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 246579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 246679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 246779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 246879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 246979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 247179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 247279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 247379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 247479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 247579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 247679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 247879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 247979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 248179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 248279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 248379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2485a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell final boolean atEnd = trackMotionScroll(delta, delta); 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2487a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell if (more && !atEnd) { 248879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 248979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 249079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 249179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 249279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 249379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 249479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 249579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 249679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 249779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 249879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 250179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 250379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 250479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 2510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 2511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 2513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 2514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 2515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 2516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 2518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 2519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 2520458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 2521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 252252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 2523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 2525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 2526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 2529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 2534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 2535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2536458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 2537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 2538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 2551458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2552458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 2557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 2558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 2559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2566fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 2567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 2568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 2569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 2574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 2575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 2578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2582fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 2583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 2584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 2585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2589458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 2590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 2591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 2594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 2610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 2616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 2617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2618458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 2620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 2621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 2624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 2625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 2626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 26270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 26280b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 26290b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 26300b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 2631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 2633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2636458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2637458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 2639458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 2640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 2641458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 2642029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 2643458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2644029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 2645458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 2646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2647458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 26487e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 2649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 2655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 2656029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 2657029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 2658029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 2659029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 2660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 2663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 2665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2666458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2667458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 2671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 2672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 2673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 26747e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 2675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 2676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 2677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 2679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 2683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 2684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2686458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 2690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 2691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 26970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 26980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 26990b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 2700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 2701029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 2702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2703029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 2704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 2706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27077e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 2708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 2714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 2715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 2716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 2719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 2721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 2727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 2728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 2729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 2730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 27317e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 2732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 2733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2735458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 2736458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 2737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 2738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 2739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2741458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2743458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 2745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 2752458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 2753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 2754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 2755458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 2756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 2757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 2758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 2760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 2764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 2765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 2766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 2767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 2768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 2769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 2770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 2771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 2772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 2773458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 2774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 2776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 2780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 2781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 2782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 2783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 2784458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 2785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 2786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 2788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.startScroll(distance, duration); 2790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 28016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 28026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 28036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 28046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 28056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 28066dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 28076dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 28086dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 28096dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 28106dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 28116dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 28126dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 28136dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 28146dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 28156dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28176dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 2826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 2831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2857458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 285991f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && deltaY >= 0) { 2860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 2861458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 2862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 2863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 286591f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY <= 0) { 2866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 2867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 2868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 2869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2873029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 2874029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 2875029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 2876029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 2879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 2882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 2885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 2886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 2887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 2888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 2889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 2892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 2893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 2894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 2895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 2897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 2898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 2899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 2906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 2907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 2908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 2909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 2912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 2913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 2914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 2915458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 2916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 2918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 2919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 2920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 2933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 2937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 2938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2939029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 2940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 2944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2947029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 29482a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 29492a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 29502a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell positionSelector(getChildAt(childIndex)); 29512a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 2952029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 2953029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 2954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 2955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 2957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 2958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 2994ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 2995ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 2996ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 30264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 30294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 30304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 30314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 30324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 30334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @param y Where the user touched 30344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row closest to y 30354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 30364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell int findClosestMotionRow(int y) { 30374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int childCount = getChildCount(); 30384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (childCount == 0) { 30394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return INVALID_POSITION; 30404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 30414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 30424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionRow = findMotionRow(y); 30434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 30444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 328143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 328243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 328343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 328443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 328543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 328643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 328743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 328843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 328943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 329043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 329143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 329243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 329343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 329443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 329543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 329624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 329743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 329843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3302d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 33144df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3315b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3321b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 332524443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3328b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3397b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 341383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 34148d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 34158d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 34168d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 341783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 341883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 341983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 342083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 342183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 342283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 3428cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3432b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3437105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3459b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 3460b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3461b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3462b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3463c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 3464c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 3465c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 3466c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 3467c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 34681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 34691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 34701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 34711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 34721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 34731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 34741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 34751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 34761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 34771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 34781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 34791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 34801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 34811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 34821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 34831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 34841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 34851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 34861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 34871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 34881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 34891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 34901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 34911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 34921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 34931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 34941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 34951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 34961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 34971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 34981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 34991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 35001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 35011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 35021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 35031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 35041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 35051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 35061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 35071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 3508c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 3509c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 3510b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 35110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3512b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 3513b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 3514b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 3515b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3516b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3517b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 3518b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 3519b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 35200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3521b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 35304df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 35314df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 3534b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 3535b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 3536b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 3537b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 3538b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 3539105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 3550d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 358224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 358743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 35961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 36031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 36041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 3607c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 36161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 36341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 369752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 369852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 369952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 370052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 370152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 370252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 370352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 370452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 373113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 374613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 374713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 374813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 374913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 375013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 375113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 375213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 375313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 375413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 375513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 375613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 375713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 375813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 375913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 376013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 376152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 376213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 376313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 376413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 376513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 376613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 376713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 376813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 376913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 377013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 377113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 377213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 377313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 377413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 377513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 377613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 377713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 377813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 377913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 378013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 378113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 378213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 378313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 378413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 378513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 378613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 378713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 378813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 378952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 379013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 379113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 379213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 379313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 379452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 379513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 379613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 379713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 379813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 379913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 380013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 380113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 380213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38259bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.ExportedProperty(mapping = { 38269bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 38279bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 38289bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38314df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 38324df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 38334df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 38344df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 38354df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 38364df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 38379bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.ExportedProperty 38384df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 38394df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 38400bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 38410bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 38420bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 38430bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 38440bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 38450bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 38460bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 38470bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 38480bf88594c43ced48d862d122e3e84967b3b63658Romain Guy @ViewDebug.ExportedProperty 38490bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 38500bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3936f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 3937f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 3938f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 3939f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 3940f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 3941f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 3942f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 3943f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 3944f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 3945f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 3946f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 3947f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 3948f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 3949f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 3950f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 3951f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 3952f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 3953f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 3954f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 39550a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 39989c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 40009c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 40034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 40679b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 40689b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 40699b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4074a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4077a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4096a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 409921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy int whichScrap = ((AbsListView.LayoutParams) victim.getLayoutParams()).viewType; 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41039b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 41059b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 41069b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 41079b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4114a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 41579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 416652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 416752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 416852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 416952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 417052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 417152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 417252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 417352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 417452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 417552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 417652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 417752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 417852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 417952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 418052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 418152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 418252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 418352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 418452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 418552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 418652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 418752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 418852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 418952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 419052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 419152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 419252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 419352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 419452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 419552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 419652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 419752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 419852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4201