AbsListView.java revision 99441c45e48abd118bd38da6f0844750a710cd33
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; 220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powellimport android.content.res.Resources; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powellimport android.view.ContextMenu.ContextMenuInfo; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powellimport android.view.animation.AnimationUtils; 501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 51b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 52b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 60d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 61d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 62d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnTouchModeChangeListener { 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 12679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 1340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell */ 1350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 1360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 1370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell /** 1380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell * Indicates the view is being flung outside of normal content bounds 1390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell * and will spring back. 1400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell */ 1410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell static final int TOUCH_MODE_OVERFLING = 6; 1420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 1430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 3350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 3830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 3840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 3850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell * Maximum distance to record overscroll 3860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell */ 3870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int mOverscrollMax; 3880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 3890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell /** 3900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell * Content height divided by this is the overscroll limit. 3910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell */ 3920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 3930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 3940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell /** 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 4180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 456d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 458d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 4621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 4636dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4646dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 4654296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 4664296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 46721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 46821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 46924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy 47024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 47124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 47224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 4734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 4744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 4754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 4764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 4774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 4784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 4794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 4804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 4814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 4824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 4834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 4844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 4856dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell * Maximum distance to overscroll by during edge effects 4880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell */ 4890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int mOverscrollDistance; 4900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 4910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell /** 4920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell * Maximum distance to overfling during edge effects 4930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell */ 4940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int mOverflingDistance; 4950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 4960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // These two EdgeGlows are always set and used together. 4970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Checking one for null is as good as checking both. 4980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 4990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell /** 5000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell * Tracks the state of the top edge glow. 5010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell */ 5020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell private EdgeGlow mEdgeGlowTop; 5030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 5040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell /** 5050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell * Tracks the state of the bottom edge glow. 5060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell */ 5070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell private EdgeGlow mEdgeGlowBottom; 5080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 5090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell /** 5105916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell * An estimate of how many pixels are between the top of the list and 5115916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell * the top of the first position in the adapter, based on the last time 5125916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell * we saw it. Used to hint where to draw edge glows. 5135916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell */ 5145916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell private int mFirstPositionDistanceGuess; 5155916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell 5165916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell /** 5175916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell * An estimate of how many pixels are between the bottom of the list and 5185916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell * the bottom of the last position in the adapter, based on the last time 5195916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell * we saw it. Used to hint where to draw edge glows. 5205916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell */ 5215916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell private int mLastPositionDistanceGuess; 5225916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell 5235916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell /** 524e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira * Used for determining when to cancel out of overscroll. 525e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira */ 526e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira private int mDirection = 0; 527e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira 528e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira /** 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 6210a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 627d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 631d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 632d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 633df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 634d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 635d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 636d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 637d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 638d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6394296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 6404296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 6414296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 6424296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 6430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 6440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 6450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 646d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 647d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 6480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell @Override 650737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell public void setOverScrollMode(int mode) { 651737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell if (mode != OVER_SCROLL_NEVER) { 6520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop == null) { 6530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Resources res = getContext().getResources(); 6545916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 6550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 6560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop = new EdgeGlow(edge, glow); 6570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom = new EdgeGlow(edge, glow); 6580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 6590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 6600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop = null; 6610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom = null; 6620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 663737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell super.setOverScrollMode(mode); 6640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 6650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 666d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 667e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell * @return true if all list content currently fits within the view boundaries 668e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell */ 669e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell private boolean contentFits() { 670e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell final int childCount = getChildCount(); 671e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell if (childCount != mItemCount) { 672e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell return false; 673e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell } 674e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell 675e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell return getChildAt(0).getTop() >= 0 && getChildAt(childCount - 1).getBottom() <= mBottom; 676e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell } 677e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell 678e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell /** 6790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 6800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 6820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 7130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 7310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 8406bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter + "}"; 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 956f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 96699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 98199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 98299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 98399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 98499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 98599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 98699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1040d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1041d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 10470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 11550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 11750b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 11760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 11770b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 11780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScrollY != 0) { 11790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Compensate for overscroll 11800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 11810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 11820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 11830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 11840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 11850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1236d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1237d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1238d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1239d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1244f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1245f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1246f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1247f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1248f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1249f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1250f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1251f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 12540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 12550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1265d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1266d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1267d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1268d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1269d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1270d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1271d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1272d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1278d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1279d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1280d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 138321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 138421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 138521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 138821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 138921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 141721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1418a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1419a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1490d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1585df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1586df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1587df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1588df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1596ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1597ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1598ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1599ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1606df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1607df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1681d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1682d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1683d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16911f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 16921f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 16931f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 169421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 169521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 169621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 1700d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 1701d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 1702d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 1703d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 1715670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 1716670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 1717670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 1718670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 1719670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 1720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 1721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 17225916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell finishGlows(); 1723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 1724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 1725670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 173497566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 17800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 1800005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 1801005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 1802005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 1803005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 1804005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean performLongPress(final View child, 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1903df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 1904df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 1905df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1906df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 1907df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 1912dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1913dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 1914dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1915df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 1916dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 1918dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 192045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 192145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 192245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 192345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1927dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20210a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 20320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final boolean overscroll = mScrollY != 0; 20330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (overscroll || distance > mTouchSlop) { 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 20350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 20720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int touchMode = mTouchMode; 20730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 20740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable != null) { 20750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.endFling(); 20760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 20780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScrollY != 0) { 20790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = 0; 20805916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell finishGlows(); 20810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 20820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2089dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2090dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2091dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2092dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2093dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2094dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 210182f3495b146b267f3786997752cef25310176349Romain Guy 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 21140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell switch (mTouchMode) { 21150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: { 21160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.endFling(); 21170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 21180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = mLastY = (int) ev.getY(); 21190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 21200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mActivePointerId = ev.getPointerId(0); 21210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 21220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell default: { 21250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mActivePointerId = ev.getPointerId(0); 21260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int x = (int) ev.getX(); 21270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int y = (int) ev.getY(); 21280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int motionPosition = pointToPosition(x, y); 21290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mDataChanged) { 21300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 21310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell && (getAdapter().isEnabled(motionPosition))) { 21320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 21330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // click or a scroll. Assume it is a click until proven otherwise 21340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_DOWN; 21350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // FIXME Debounce 21360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mPendingCheckForTap == null) { 21370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mPendingCheckForTap = new CheckForTap(); 21380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 21400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 21410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 21420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // If we couldn't find a view to click on, but the down event was touching 21430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // the edge, we will bail out and try again. This allows the edge correcting 21440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // code in ViewRoot to try to find a nearby view to select 21450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return false; 21460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 21480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mTouchMode == TOUCH_MODE_FLING) { 21490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Stopped a fling. It is a scroll. 21500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell createScrollingCache(); 21510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 21520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 21530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionPosition = findMotionRow(y); 21540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 21550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21569d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 215779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 21589d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 21590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionPosition >= 0) { 21600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Remember where the motion event started 21610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell v = getChildAt(motionPosition - mFirstPosition); 21620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionViewOriginalTop = v.getTop(); 21630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionX = x; 21650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = y; 21660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionPosition = motionPosition; 21670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mLastY = Integer.MIN_VALUE; 21680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 21690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 21754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 21764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2195110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2196110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2197110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2198110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2199110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2200110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2201110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2202110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 22030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int rawDeltaY = deltaY; 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 220679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 22070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionIndex; 22080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mMotionPosition >= 0) { 22090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionIndex = mMotionPosition - mFirstPosition; 22100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 22110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // If we don't have a motion position that we can reliably track, 22120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // pick something in the middle to make a best guess at things below. 22130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionIndex = getChildCount() / 2; 22140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int motionViewPrevTop = 0; 22170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(motionIndex); 22180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 22190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionViewPrevTop = motionView.getTop(); 22200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22226198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 22246198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2225458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 22266198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 22290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView = this.getChildAt(motionIndex); 22300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 22310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check if the top of the motion view is where it is 22320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // supposed to be 22330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionViewRealTop = motionView.getTop(); 22340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (atEdge) { 22350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Apply overscroll 22360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int overscroll = -incrementalDeltaY - 22380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (motionViewRealTop - motionViewPrevTop); 2239737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 22400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverscrollDistance, true); 22410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 22420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Don't allow overfling if we're at the edge. 22430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 22440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 2245e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell 2246737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell final int overscrollMode = getOverScrollMode(); 2247737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2248737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2249e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell !contentFits())) { 2250e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira mDirection = 0; // Reset when entering overscroll. 2251e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 22520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (rawDeltaY > 0) { 22530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 2254ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira if (!mEdgeGlowBottom.isFinished()) { 2255ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira mEdgeGlowBottom.onRelease(); 2256ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira } 22570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else if (rawDeltaY < 0) { 22580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 2259ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira if (!mEdgeGlowTop.isFinished()) { 2260ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira mEdgeGlowTop.onRelease(); 2261ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira } 22620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 226479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2265b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2266b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 226779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 226879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 226979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 227079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 22710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 22730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (y != mLastY) { 22740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int rawDeltaY = deltaY; 22750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell deltaY -= mMotionCorrection; 22760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 22770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int oldScroll = mScrollY; 22790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int newScroll = oldScroll - incrementalDeltaY; 2280e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira int newDirection = y > mLastY ? 1 : -1; 2281e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira 2282e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira if (mDirection == 0) { 2283e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira mDirection = newDirection; 2284e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira } 22850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2286e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira if (mDirection != newDirection) { 22870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Coming back to 'real' list scrolling 22880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell incrementalDeltaY = -newScroll; 22890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = 0; 22900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // No need to do all this work if we're not going to move anyway 22920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (incrementalDeltaY != 0) { 22930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 22940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check to see if we are back in 22970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 22980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 22990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 23000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 23010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // We did not scroll the full amount. Treat this essentially like the 23020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // start of a new touch scroll 23030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionPosition = findClosestMotionRow(y); 23040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 23050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 23060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView = getChildAt(motionPosition - mFirstPosition); 23070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionViewOriginalTop = motionView.getTop(); 23080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = y; 23090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionPosition = motionPosition; 23100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 2312737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell overScrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 23130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverscrollDistance, true); 2314737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell final int overscrollMode = getOverScrollMode(); 2315737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2316737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2317e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell !contentFits())) { 23180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (rawDeltaY > 0) { 23190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 2320ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira if (!mEdgeGlowBottom.isFinished()) { 2321ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira mEdgeGlowBottom.onRelease(); 2322ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira } 23230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else if (rawDeltaY < 0) { 23240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 2325ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira if (!mEdgeGlowTop.isFinished()) { 2326ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira mEdgeGlowTop.onRelease(); 2327ca6eb210e6eb0afe84bdf0558085f555a9a32655Mindy Pereira } 23280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 23300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 23320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Don't allow overfling if we're at the edge. 23330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 23340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mLastY = y; 2337e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira mDirection = newDirection; 23380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2375005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2376005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 23856198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2398005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2399005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2402005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2403005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 24096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 24106198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 24110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int firstChildTop = getChildAt(0).getTop(); 24120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 24130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int contentTop = mListPadding.top; 24140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int contentBottom = getHeight() - mListPadding.bottom; 24150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 24166198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 24170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell lastChildBottom <= getHeight() - contentBottom) { 24186198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 24196198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24206198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 24216198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 24226198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 24234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 24240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Fling if we have enough velocity and we aren't at a boundary. 24260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Since we can potentially overfling more than we can overscroll, don't 24270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // allow the weird behavior where you can scroll to a boundary then 24280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // fling further. 24290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 24300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell !((mFirstPosition == 0 && 24310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell firstChildTop == contentTop - mOverscrollDistance) || 24320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (mFirstPosition + childCount == mItemCount && 24330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 24346198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 24356198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 24366198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 24376198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 243879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 24396198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2440f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2441f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2442f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 244979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 24500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 24520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable == null) { 24530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable = new FlingRunnable(); 24540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final VelocityTracker velocityTracker = mVelocityTracker; 24560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 24570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 24580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 24600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 24610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startOverfling(-initialVelocity); 24620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 24630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startSpringback(); 24640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 24720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onRelease(); 24730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onRelease(); 24740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 24780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 24894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 25010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell switch (mTouchMode) { 25020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 25030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable == null) { 25040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable = new FlingRunnable(); 25050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startSpringback(); 25070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: 25100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Do nothing - let it play out. 25110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell default: 25140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_REST; 25150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell setPressed(false); 25160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 25170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 25180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView.setPressed(false); 25190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell clearScrollingCache(); 25210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Handler handler = getHandler(); 25230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (handler != null) { 25240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell handler.removeCallbacks(mPendingCheckForLongPress); 25250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mVelocityTracker != null) { 25280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.recycle(); 25290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker = null; 25300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 25330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 25340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onRelease(); 25350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onRelease(); 25360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 25384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 25394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 25404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 25414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 25424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 25434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 25444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 25454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 25464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 25474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 25484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 25494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 25504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 25514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 25524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 25534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2561737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell protected void onOverScrolled(int scrollX, int scrollY, 25620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell boolean clampedX, boolean clampedY) { 25630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = scrollY; 25640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (clampedY) { 25660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Velocity is broken by hitting the limit; don't start a fling off of this. 25670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mVelocityTracker != null) { 25680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 25690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell awakenScrollBars(); 25720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell @Override 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 25770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 25780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 25790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mEdgeGlowTop.isFinished()) { 25800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int restoreCount = canvas.save(); 25810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int width = getWidth(); 25820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25835916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell canvas.translate(-width / 2, Math.min(0, scrollY + mFirstPositionDistanceGuess)); 25840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.setSize(width * 2, getHeight()); 25850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop.draw(canvas)) { 25860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 25870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mEdgeGlowBottom.isFinished()) { 25910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int restoreCount = canvas.save(); 25920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int width = getWidth(); 25930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int height = getHeight(); 25940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25955916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell canvas.translate(-width / 2, 25965916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 25970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.rotate(180, width, 0); 25980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.setSize(width * 2, height); 25990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowBottom.draw(canvas)) { 26000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 26010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 26020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 26030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 26040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 26060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 26070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (scrollY != 0) { 26080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Pin to the top/bottom during overscroll 26090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int restoreCount = canvas.save(); 26100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.translate(0, (float) scrollY); 26110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFastScroller.draw(canvas); 26120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 26130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 26140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFastScroller.draw(canvas); 26150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 26230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 263379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 26340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 26350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 26360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return true; 26370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 263879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 26394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 26404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 26414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 26424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 264479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 265679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 26574b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 26584b4f40f84e72579417604143e5f42115769649b8Romain Guy } 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 26654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 26664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 26834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 26844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 26854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 26924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 26934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 26944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 26954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 26964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 26974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 26984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 26994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 27004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 27014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 27020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 27034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 27044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 27054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 27064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell private final OverScroller mScroller; 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 276579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 27660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller = new OverScroller(getContext()); 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 276979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2784458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void startSpringback() { 2786737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 27870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 27890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 27900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 27910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_REST; 27920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 27950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void startOverfling(int initialVelocity) { 27960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 27970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 27980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 27990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 28000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 28010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 28020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 28040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void edgeReached(int delta) { 28050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 2806737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell final int overscrollMode = getOverScrollMode(); 2807737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2808737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 2809e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 28100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int vel = (int) mScroller.getCurrVelocity(); 28110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (delta > 0) { 28120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onAbsorb(vel); 28130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 28140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onAbsorb(vel); 28150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 28180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 28190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2825458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 2834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 283579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 284379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 284479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 284679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 284779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 284879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 284979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 285079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 285179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final OverScroller scroller = mScroller; 285479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 285579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 285779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 285879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 285979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 286179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 286279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 286379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 286479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 286579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 286679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 286879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 286979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 287079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 287179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 287279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 287379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 287579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 287679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 287879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 287979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 288079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check to see if we have bumped into the scroll limit 28830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 28840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int oldTop = 0; 28850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 28860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell oldTop = motionView.getTop(); 28870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2889a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell final boolean atEnd = trackMotionScroll(delta, delta); 28900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (atEnd) { 28910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 28920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Tweak the scroll for how far we overshot 28930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 2894737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 28950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverflingDistance, false); 28960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 2897b9b8f7b99b25eb9520e5d33e5a84d202d96e81afAdam Powell if (more) { 2898b9b8f7b99b25eb9520e5d33e5a84d202d96e81afAdam Powell edgeReached(delta); 2899b9b8f7b99b25eb9520e5d33e5a84d202d96e81afAdam Powell } 29000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 29010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2903a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell if (more && !atEnd) { 290479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 290579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 290679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 290779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 290879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 290979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 291079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 291179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 291279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 291379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 291479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 291779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 29200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: { 29210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final OverScroller scroller = mScroller; 29220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (scroller.computeScrollOffset()) { 29230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 29240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int deltaY = scroller.getCurrY() - scrollY; 2925737e8fe2c7ce167bc68ad779160488007a5e0b1dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 29260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverflingDistance, false)) { 29270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell startSpringback(); 29280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 29290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 29300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 29310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 29320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 29330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell endFling(); 29340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 29350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 29360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 293779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 293879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 2944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 2945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 2947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 2948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 2949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 2950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 2952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 2953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 2954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 2955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 295652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 2957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 2959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 2960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 2963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 2968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 2969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 2971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 2972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 2985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 2991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 2992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 2993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 3000fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3016fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 3045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 30610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 30620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 30630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 30640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3076029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3078029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 30827e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3090029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 3091029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3092029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3093029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 31087e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 3117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 31310b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 31320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 31330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3135029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3137029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 31417e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 31657e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3185458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 3199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 3200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 3201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 3203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 3204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 3206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 3210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 3214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 3215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 3216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 3218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 3219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 3220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 3222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.startScroll(distance, duration); 3224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 32356dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 32366dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 32376dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 32386dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 32396dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 32406dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 32416dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 32426dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 32436dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 32446dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 32456dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 32466dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 32476dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 32486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 32496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32516dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 3260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3262458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 3265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32935916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell // Update our guesses for where the first and last views are 32945916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell if (firstPosition == 0) { 32955916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mFirstPositionDistanceGuess = firstTop - mListPadding.top; 32965916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } else { 32975916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 32985916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 32995916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell if (firstPosition + childCount == mItemCount) { 33005916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mLastPositionDistanceGuess = lastBottom + mListPadding.bottom; 33015916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } else { 33025916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mLastPositionDistanceGuess += incrementalDeltaY; 33035916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 33045916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell 33050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && incrementalDeltaY >= 0) { 3306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 3307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 33080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return incrementalDeltaY != 0; 3309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && 33120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell incrementalDeltaY <= 0) { 3313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 3314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 33150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return incrementalDeltaY != 0; 3316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3320029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 3321029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 3322029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 3323029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 3326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 3329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 3333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 3336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3343458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3357458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3359458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3378458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3381458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3385458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3386029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3394029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 33952a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 33962a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 33972a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell positionSelector(getChildAt(childIndex)); 33982a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 3399029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3400029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3401458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3441ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3442ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3443ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 34734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 34764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 34774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 34784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 34794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 34804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @param y Where the user touched 34814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row closest to y 34824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 34834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell int findClosestMotionRow(int y) { 34844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int childCount = getChildCount(); 34854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (childCount == 0) { 34864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return INVALID_POSITION; 34874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 34894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionRow = findMotionRow(y); 34904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 34914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 372843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 372943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 373043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 373143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 373243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 373343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 373443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 373543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 373643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 373743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 373843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 373943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 374043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 374143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 374243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 374324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 374443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 374543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 37614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3762b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3768b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 377224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3775b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3844b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 386083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 38618d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 38628d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 38638d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 386483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 386583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 386683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 386783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 386883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 386983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 3875cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3884105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 38859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3906b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 3907b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3908b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3909b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3910c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 3911c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 3912c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 3913c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 3914c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 39151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 39161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 39171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 39181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 39191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 39201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 39211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 39221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 39231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 39241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 39261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 39271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 39281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 39291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 39301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 39311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 39321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 39331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 39341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 39351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 39361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 39381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 39401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 39421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 39431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 39441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 39451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 39461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 39471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 39481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 39501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 39521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 39531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 39541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 3955c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 3956c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 3957b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 39580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3959b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 3960b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 3961b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 3962b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3963b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3964b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 3965b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 3966b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 39670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3968b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 39774df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 39784df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 3981b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 3982b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 3983b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 3984b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 3985b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 3986105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 3997d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 402924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 403443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 40431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 40501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 40511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4054c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 40631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 40679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 40811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 414452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 414552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 414652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 414752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 414852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 414952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 415052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 415152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 41579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 41669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 41689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 41709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 41739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 41769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 417813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 41799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 41829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 41859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 419313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 419413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 419513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 419613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 419713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 419813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 419913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 420013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 420113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 420213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 420313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 420413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 420513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 420613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 420713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 420852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 420913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 421013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 421113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 421213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 421313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 421413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 421513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 421613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 421713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 421813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 421913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 422013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 422113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 422213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 422313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 422413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 422513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 422613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 422713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 422813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 422913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 423013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 423113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 423213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 423313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 423413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 423513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 423652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 423713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 423813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 423913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 424013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 424152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 424213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 424313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 424413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 424513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 424613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 424713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 424813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 42495916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell private void finishGlows() { 42505916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell if (mEdgeGlowTop != null) { 42515916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mEdgeGlowTop.finish(); 42525916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mEdgeGlowBottom.finish(); 42535916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 42545916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 42555916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell 425613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 42779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4279bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 42809bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 42819bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 42829bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42854df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 42864df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 42874df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 42884df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 42894df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 42904df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 4291bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 42924df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 42934df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 42940bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 42950bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 42960bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 42970bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 42980bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 42990bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 43000bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 43010bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 4302bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 43030bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 43040bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4390f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 4391f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 4392f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 4393f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 4394f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4395f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 4396f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 4397f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4398f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 4399f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 4400f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 4401f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 4402f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4403f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 4404f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 4405f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4406f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4407f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4408f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 44090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 44529c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 44549c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 44574df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 45219b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 45229b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 45239b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4528a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4531a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4550a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 455321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy int whichScrap = ((AbsListView.LayoutParams) victim.getLayoutParams()).viewType; 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45579b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 45599b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 45609b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 45619b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4568a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 462052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 462152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 462252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 462352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 462452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 462552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 462652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 462752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 462852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 462952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 463052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 463152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 463252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 463352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 463452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 463552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 463652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 463752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 463852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 463952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 464052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 464152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 464252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 464352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 464452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 464552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 464652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 464752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 464852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 464952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 465052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 465152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 465252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4655