AbsListView.java revision e44afae7ff91edb80142fc62ce2bc2cb9d133d09
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); 56230346c4399af45b46996f504004796177b975349Romain Guy 56330346c4399af45b46996f504004796177b975349Romain Guy final int adapterId = a.getResourceId(R.styleable.AbsListView_adapter, 0); 56430346c4399af45b46996f504004796177b975349Romain Guy if (adapterId != 0) { 56530346c4399af45b46996f504004796177b975349Romain Guy final Context c = context; 56630346c4399af45b46996f504004796177b975349Romain Guy post(new Runnable() { 56730346c4399af45b46996f504004796177b975349Romain Guy public void run() { 56830346c4399af45b46996f504004796177b975349Romain Guy setAdapter(Adapters.loadAdapter(c, adapterId)); 56930346c4399af45b46996f504004796177b975349Romain Guy } 57030346c4399af45b46996f504004796177b975349Romain Guy }); 57130346c4399af45b46996f504004796177b975349Romain Guy } 572d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 576d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 577d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 578df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 579d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 580d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 581d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 582d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 583d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 5844296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 5854296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 5864296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 5874296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 588d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 589d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 5900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 591d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 5920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 5930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 5950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 6260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 6440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 7536bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter + "}"; 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 869f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 949d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 950d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 9560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 10640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 10840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 10850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 10860b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 10870b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 10880b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 10890b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 10900b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1141d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1142d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1143d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1144d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1149f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1150f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1151f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1152f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1153f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1154f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1155f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1156f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1168d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1169d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1170d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1171d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1172d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1173d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1174d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1175d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1181d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1182d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1183d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 128621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 128721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 128821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 129121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 129221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 132021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1321a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1322a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1393d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1488df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1489df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1490df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1491df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1499ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1500ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1501ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1502ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1509df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1510df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15680a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1584d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1585d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1586d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 158882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 158982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 159082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 159182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 159282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15991f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 16001f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 16011f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 160221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 160321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 160421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 1608d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 1609d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 1610d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 1611d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 161382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 161482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 161582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 161682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 161782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 1628670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 1629670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 1630670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 1631670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 1632670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 1633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 1634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 1635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 1636458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 1637670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 164697566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 16920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1711005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 1712005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 1713005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 1714005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 1715005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 1716005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean performLongPress(final View child, 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1815df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 1816df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 1817df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1818df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 1819df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 1824dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1825dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 1826dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1827df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 1828dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 1830dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 183245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 183345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 183445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 183545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1839dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 19449d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (distance > mTouchSlop) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 19469d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 1987dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1988dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 1989dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 1990dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 1991dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1992dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 199982f3495b146b267f3786997752cef25310176349Romain Guy 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 20129d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mActivePointerId = ev.getPointerId(0); 20139d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int x = (int) ev.getX(); 20149d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int y = (int) ev.getY(); 20159d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell int motionPosition = pointToPosition(x, y); 20169d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (!mDataChanged) { 20179d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 20189d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell && (getAdapter().isEnabled(motionPosition))) { 20199d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 20209d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // click or a scroll. Assume it is a click until proven otherwise 20219d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_DOWN; 20229d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // FIXME Debounce 20239d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mPendingCheckForTap == null) { 20249d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mPendingCheckForTap = new CheckForTap(); 20259d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 20269d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 20279d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } else { 20289d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 20299d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // If we couldn't find a view to click on, but the down event was touching 20309d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 20319d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // code in ViewRoot to try to find a nearby view to select 20329d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell return false; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 20369d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Stopped a fling. It is a scroll. 20379d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell createScrollingCache(); 20389d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 20399d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionCorrection = 0; 20409d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionPosition = findMotionRow(y); 20419d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 20429d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 204379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 204479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 20459d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 20469d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionPosition >= 0) { 20479d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Remember where the motion event started 20489d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 20499d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionViewOriginalTop = v.getTop(); 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20519d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionX = x; 20529d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionY = y; 20539d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionPosition = motionPosition; 20549d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mLastY = Integer.MIN_VALUE; 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 20594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 20604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2079110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2080110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2081110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2082110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2083110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2084110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2085110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2086110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 208979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 20906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 20926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 20946198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2097b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (atEdge && getChildCount() > 0) { 2098b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // Treat this like we're starting a new scroll from the current 2099b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // position. This will let the user start scrolling back into 2100b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // content immediately rather than needing to scroll back to the 2101b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // point where they hit the limit first. 2102b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell int motionPosition = findMotionRow(y); 2103b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (motionPosition >= 0) { 2104b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell final View motionView = getChildAt(motionPosition - mFirstPosition); 2105b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionViewOriginalTop = motionView.getTop(); 210679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2107b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2108b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionPosition = motionPosition; 2109b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 211079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 211179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 211279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 211379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2149005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2150005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 21596198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2172005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2173005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2176005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2177005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 21836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 21846198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 21856198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFirstPosition == 0 && getChildAt(0).getTop() >= mListPadding.top && 21866198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 21876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getChildAt(childCount - 1).getBottom() <= 21886198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getHeight() - mListPadding.bottom) { 21896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 21906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 21916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 21926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 21936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 21944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 21956198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 21966198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (Math.abs(initialVelocity) > mMinimumVelocity) { 21976198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 21986198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 21996198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 22006198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 220179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 22026198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2203f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2204f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2205f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 22066198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 221279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 22190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 22304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 22429d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_REST; 22439d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell setPressed(false); 22449d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 22459d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionView != null) { 22469d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionView.setPressed(false); 22479d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 22489d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell clearScrollingCache(); 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22509d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Handler handler = getHandler(); 22519d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (handler != null) { 22529d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 22539d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22559d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mVelocityTracker != null) { 22569d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker.recycle(); 22579d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker = null; 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 22604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 22614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 22624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 22634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 22644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 22654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 22664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 22674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 22684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 22694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 22704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 22714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 22724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 22734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 22744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 22754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 22764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 22879d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mFastScroller.draw(canvas); 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 22950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 230579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 230679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 23074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 23084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 23094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 23104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 231279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 232479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 23254b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 23264b4f40f84e72579417604143e5f42115769649b8Romain Guy } 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 23334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 23344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 23504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 23514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 23524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 23534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 23594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 23604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 23614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 23624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 23634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 23644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 23654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 23664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 23674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 23684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 23694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 23704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 23714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 23724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 23734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 23744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 23754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24259d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell private final Scroller mScroller; 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 243279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 24339d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mScroller = new Scroller(getContext()); 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 243679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2456458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 2465458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 246679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2469458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2470458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 247479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 247579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 247779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 247879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 247979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 248079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 248179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 248279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24849d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Scroller scroller = mScroller; 248579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 248679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 248879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 248979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 249079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 249379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 249479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 249579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 249679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 249779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 250079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 250179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 250279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 250379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 250479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 250679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 250779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 250979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 251079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 251179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2513a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell final boolean atEnd = trackMotionScroll(delta, delta); 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2515a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell if (more && !atEnd) { 251679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 251779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 251879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 251979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 252079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 252179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 252279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 252379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 252479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 252579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 252679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 252979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 253179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 253279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2536458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 2538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 2539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 2541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 2542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 2543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 2544e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 2545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 2547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 2548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 2549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 2550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 255152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 2552e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2553e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 2554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 2556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 2557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 2560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 2565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 2566458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 2568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 2569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 2582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 2588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 2589458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 2590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2597fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 2598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 2599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 2600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 2605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 2606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 2609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2613fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 2614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 2615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 2616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2618458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 2621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 2622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 2625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2627458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2636458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2637458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2639458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 2641458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2643458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2645e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2646e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 2647e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 2648e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 2649e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 2650e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 2651e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 2652e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2653e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 2654e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2655e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2656e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int viewTravelCount = 0; 2657e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 2658e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 2659e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 2660e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 2661e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 2662e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 2663e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 2664e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell smoothScrollBy(targetTop - offset, SCROLL_DURATION); 2665e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 2666e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 2667e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2668e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2669e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 2670e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 2671e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 2673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 2674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2675e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 2677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 2678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 2681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 2682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 2683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 26840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 26850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 26860b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 26870b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 2688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 2690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 2696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 2697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 2698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 2699029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 2700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2701029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 2702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 2703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 27057e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 2706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 2712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 2713029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 2714029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 2715029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 2716029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 2717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 2720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 2722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 2728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 2729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 2730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 27317e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 2732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 2733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 2734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2735458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 2736458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 2740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 2741458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2743458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 2747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 2748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2752458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 27540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 27550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 27560b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 2757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 2758029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 2759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2760029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 2761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 2763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27647e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 2765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 2771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 2772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 2773458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 2776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 2778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 2784458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 2785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 2786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 2787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 27887e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 2789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 2790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 2793458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 2794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 2795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 2796458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2798458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2799458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2801e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 2802e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (firstPos == mLastSeenPos) { 2803e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // No new views, let things keep going. 2804e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 2805e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 2806e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2807e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 2808e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2809e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2810e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 2811e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final View firstView = getChildAt(0); 2812e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstViewPixelsShowing = firstView.getHeight() + firstView.getTop(); 2813e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell smoothScrollBy(-firstViewPixelsShowing, mScrollDuration); 2814e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 2815e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 2816e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final View lastView = getChildAt(getChildCount() - 1); 2817e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int lastViewPixelsShowing = lastView.getBottom() - lastView.getHeight(); 2818e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell smoothScrollBy(lastViewPixelsShowing, mScrollDuration); 2819e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 2820e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 2821e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 2822e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 2823e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell smoothScrollBy(targetTop - mOffsetFromTop, mScrollDuration); 2824e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 2825e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 2826e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 2827e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 2829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 2836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 2837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 2838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 2839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 2840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 2841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 2842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 2844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2847e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 2848e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 2849e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 2850e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 2851e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 2852e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 2853e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 2854e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 2855e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 2856e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 2857e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 2858e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 2859e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 2860e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 2861e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 2862e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 2863e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2864e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 2865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 2866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 2867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 2868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 2869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 2870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 2871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 2872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 2873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 2874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 2875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 2876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 2878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 2882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 2883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 2884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 2885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 2886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 2887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 2888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 2890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.startScroll(distance, duration); 2892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 29036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 29046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 29056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 29066dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 29076dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 29086dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 29096dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 29106dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 29116dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 29126dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 29136dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 29146dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 29156dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 29166dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 29176dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29196dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 2928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 2933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 296191f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && deltaY >= 0) { 2962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 2963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 2964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 2965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 296791f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY <= 0) { 2968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 2969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 2970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 2971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2975029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 2976029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 2977029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 2978029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 2981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 2984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 2987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 2988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 2989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 2990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 2991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 2994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 2995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 2996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 2997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 2999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3041029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3049029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 30502a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 30512a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 30522a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell positionSelector(getChildAt(childIndex)); 30532a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 3054029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3055029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3096ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3097ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3098ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 31284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 31314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 31324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 31334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 31344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 31354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @param y Where the user touched 31364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row closest to y 31374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 31384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell int findClosestMotionRow(int y) { 31394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int childCount = getChildCount(); 31404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (childCount == 0) { 31414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return INVALID_POSITION; 31424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 31434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 31444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionRow = findMotionRow(y); 31454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 31464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 338343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 338443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 338543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 338643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 338743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 338843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 338943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 339043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 339143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 339243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 339343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 339443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 339543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 339643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 339743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 339824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 339943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 340043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3404d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 34164df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3417b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3423b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 342724443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3430b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3499b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 351583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 35168d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 35178d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 35188d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 351983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 352083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 352183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 352283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 352383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 352483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 3530cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3534b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3539105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3561b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 3562b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3563b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3564b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3565c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 3566c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 3567c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 3568c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 3569c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 35701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 35711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 35721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 35731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 35741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 35751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 35761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 35771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 35781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 35791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 35801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 35811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 35821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 35831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 35841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 35851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 35861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 35871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 35881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 35891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 35901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 35911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 35921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 35931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 35941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 35951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 35961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 35971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 35981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 35991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 36001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 36011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 36021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 36031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 36041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 36051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 36061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 36071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 36081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 36091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 3610c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 3611c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 3612b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 36130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3614b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 3615b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 3616b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 3617b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3618b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3619b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 3620b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 3621b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 36220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3623b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 36324df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 36334df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 3636b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 3637b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 3638b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 3639b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 3640b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 3641105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 3652d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 368424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 368943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 36981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 37051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 37061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 3709c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 37181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 37361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 379952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 380052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 380152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 380252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 380352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 380452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 380552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 380652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 383313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 384813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 384913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 385013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 385113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 385213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 385313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 385413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 385513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 385613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 385713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 385813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 385913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 386013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 386113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 386213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 386352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 386413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 386513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 386613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 386713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 386813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 386913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 387013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 387113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 387213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 387313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 387413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 387513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 387613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 387713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 387813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 387913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 388013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 388113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 388213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 388313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 388413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 388513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 388613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 388713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 388813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 388913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 389013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 389152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 389213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 389313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 389413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 389513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 389652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 389713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 389813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 389913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 390013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 390113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 390213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 390313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 390413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39279bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.ExportedProperty(mapping = { 39289bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 39299bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 39309bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39334df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 39344df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 39354df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 39364df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 39374df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 39384df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 39399bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.ExportedProperty 39404df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 39414df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 39420bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 39430bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 39440bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 39450bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 39460bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 39470bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 39480bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 39490bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 39500bf88594c43ced48d862d122e3e84967b3b63658Romain Guy @ViewDebug.ExportedProperty 39510bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 39520bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4038f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 4039f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 4040f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 4041f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 4042f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4043f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 4044f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 4045f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4046f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 4047f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 4048f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 4049f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 4050f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4051f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 4052f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 4053f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4054f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4055f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4056f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 40570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 40679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 41009c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 41029c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 41054df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 41669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 41689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 41699b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 41709b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 41719b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4176a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 41789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4179a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 41859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 41929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 41939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 41959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4198a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 420121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy int whichScrap = ((AbsListView.LayoutParams) victim.getLayoutParams()).viewType; 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 42049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42059b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 42069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 42079b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 42089b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 42099b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 42109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 42119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 42159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4216a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 42399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 42409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 42419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 42429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 42439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 42479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 42499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 426852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 426952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 427052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 427152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 427252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 427352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 427452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 427552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 427652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 427752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 427852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 427952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 428052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 428152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 428252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 428352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 428452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 428552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 428652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 428752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 428852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 428952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 429052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 429152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 429252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 429352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 429452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 429552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 429652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 429752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 429852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 429952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 430052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4303