AbsListView.java revision e6c4747276cd4e7f0243bcd8ea50ad3e66609fef
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 6500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell public void setOverscrollMode(int mode) { 6510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mode != OVERSCROLL_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 } 6630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam 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 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 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(); 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1036d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1037d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 10430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11500b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 11510b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 11710b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 11720b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 11730b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 11740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScrollY != 0) { 11750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Compensate for overscroll 11760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 11770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 11780b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 11790b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 11800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 11810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1232d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1233d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1234d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1235d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1240f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1241f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1242f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1243f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1244f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1245f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1246f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1247f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 12500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 12510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1261d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1262d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1263d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1264d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1265d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1266d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1267d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1268d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1274d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1275d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1276d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 137921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 138021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 138121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 138421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 138521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 141321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1414a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1415a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1486d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1581df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1582df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1583df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1584df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1592ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1593ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1594ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1595ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1602df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1603df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1677d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1678d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1679d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16871f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 16881f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 16891f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 169021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 169121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 169221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 1696d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 1697d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 1698d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 1699d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 1711670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 1712670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 1713670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 1714670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 1715670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 1716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 1717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 17185916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell finishGlows(); 1719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 1720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 1721670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 173097566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 17760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1795005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 1796005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 1797005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 1798005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 1799005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 1800005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean performLongPress(final View child, 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1899df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 1900df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 1901df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1902df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 1903df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 1908dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1909dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 1910dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1911df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 1912dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 1914dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 191645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 191745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 191845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 191945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1923dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 20280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final boolean overscroll = mScrollY != 0; 20290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (overscroll || distance > mTouchSlop) { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 20310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 20680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int touchMode = mTouchMode; 20690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 20700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable != null) { 20710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.endFling(); 20720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 20740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScrollY != 0) { 20750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = 0; 20765916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell finishGlows(); 20770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 20780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2085dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2086dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2087dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2088dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2089dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2090dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 209782f3495b146b267f3786997752cef25310176349Romain Guy 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 21100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell switch (mTouchMode) { 21110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: { 21120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.endFling(); 21130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 21140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = mLastY = (int) ev.getY(); 21150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 21160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mActivePointerId = ev.getPointerId(0); 21170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 21180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell default: { 21210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mActivePointerId = ev.getPointerId(0); 21220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int x = (int) ev.getX(); 21230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int y = (int) ev.getY(); 21240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int motionPosition = pointToPosition(x, y); 21250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mDataChanged) { 21260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 21270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell && (getAdapter().isEnabled(motionPosition))) { 21280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 21290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // click or a scroll. Assume it is a click until proven otherwise 21300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_DOWN; 21310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // FIXME Debounce 21320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mPendingCheckForTap == null) { 21330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mPendingCheckForTap = new CheckForTap(); 21340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 21360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 21370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 21380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // If we couldn't find a view to click on, but the down event was touching 21390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // the edge, we will bail out and try again. This allows the edge correcting 21400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // code in ViewRoot to try to find a nearby view to select 21410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return false; 21420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 21440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mTouchMode == TOUCH_MODE_FLING) { 21450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Stopped a fling. It is a scroll. 21460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell createScrollingCache(); 21470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 21480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 21490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionPosition = findMotionRow(y); 21500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 21510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21529d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 215379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 21549d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 21550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionPosition >= 0) { 21560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Remember where the motion event started 21570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell v = getChildAt(motionPosition - mFirstPosition); 21580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionViewOriginalTop = v.getTop(); 21590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionX = x; 21610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = y; 21620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionPosition = motionPosition; 21630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mLastY = Integer.MIN_VALUE; 21640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 21650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 21714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 21724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2191110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2192110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2193110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2194110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2195110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2196110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2197110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2198110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 21990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int rawDeltaY = deltaY; 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 220279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 22030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionIndex; 22040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mMotionPosition >= 0) { 22050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionIndex = mMotionPosition - mFirstPosition; 22060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 22070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // If we don't have a motion position that we can reliably track, 22080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // pick something in the middle to make a best guess at things below. 22090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionIndex = getChildCount() / 2; 22100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int motionViewPrevTop = 0; 22130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(motionIndex); 22140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 22150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionViewPrevTop = motionView.getTop(); 22160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22186198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 22206198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 22226198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 22250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView = this.getChildAt(motionIndex); 22260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 22270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check if the top of the motion view is where it is 22280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // supposed to be 22290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionViewRealTop = motionView.getTop(); 22300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (atEdge) { 22310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Apply overscroll 22320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int overscroll = -incrementalDeltaY - 22340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (motionViewRealTop - motionViewPrevTop); 22350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell overscrollBy(0, overscroll, 0, mScrollY, 0, 0, 22360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverscrollDistance, true); 22370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 22380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Don't allow overfling if we're at the edge. 22390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 22400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 2241e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell 2242e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell final int overscrollMode = getOverscrollMode(); 2243e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell if (overscrollMode == OVERSCROLL_ALWAYS || 2244e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell (overscrollMode == OVERSCROLL_IF_CONTENT_SCROLLS && 2245e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell !contentFits())) { 2246e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira mDirection = 0; // Reset when entering overscroll. 2247e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 22480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (rawDeltaY > 0) { 22490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 22500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else if (rawDeltaY < 0) { 22510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 22520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 225479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2255b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2256b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 225779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 225879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 225979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 226079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 22610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 22630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (y != mLastY) { 22640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int rawDeltaY = deltaY; 22650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell deltaY -= mMotionCorrection; 22660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 22670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int oldScroll = mScrollY; 22690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int newScroll = oldScroll - incrementalDeltaY; 2270e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira int newDirection = y > mLastY ? 1 : -1; 2271e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira 2272e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira if (mDirection == 0) { 2273e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira mDirection = newDirection; 2274e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira } 22750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2276e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira if (mDirection != newDirection) { 22770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Coming back to 'real' list scrolling 22780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell incrementalDeltaY = -newScroll; 22790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = 0; 22800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // No need to do all this work if we're not going to move anyway 22820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (incrementalDeltaY != 0) { 22830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 22840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check to see if we are back in 22870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 22880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 22890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 22900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // We did not scroll the full amount. Treat this essentially like the 22920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // start of a new touch scroll 22930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionPosition = findClosestMotionRow(y); 22940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 22960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView = getChildAt(motionPosition - mFirstPosition); 22970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionViewOriginalTop = motionView.getTop(); 22980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = y; 22990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionPosition = motionPosition; 23000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 23020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell overscrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 23030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverscrollDistance, true); 2304e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell final int overscrollMode = getOverscrollMode(); 2305e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell if (overscrollMode == OVERSCROLL_ALWAYS || 2306e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell (overscrollMode == OVERSCROLL_IF_CONTENT_SCROLLS && 2307e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell !contentFits())) { 23080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (rawDeltaY > 0) { 23090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 23100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else if (rawDeltaY < 0) { 23110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 23120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 23140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 23160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Don't allow overfling if we're at the edge. 23170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 23180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mLastY = y; 2321e6c4747276cd4e7f0243bcd8ea50ad3e66609fefMindy Pereira mDirection = newDirection; 23220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2359005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2360005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 23696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2382005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2383005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2386005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2387005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 23936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 23946198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 23950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int firstChildTop = getChildAt(0).getTop(); 23960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 23970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int contentTop = mListPadding.top; 23980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int contentBottom = getHeight() - mListPadding.bottom; 23990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 24006198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 24010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell lastChildBottom <= getHeight() - contentBottom) { 24026198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 24036198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 24056198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 24066198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 24074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 24080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Fling if we have enough velocity and we aren't at a boundary. 24100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Since we can potentially overfling more than we can overscroll, don't 24110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // allow the weird behavior where you can scroll to a boundary then 24120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // fling further. 24130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 24140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell !((mFirstPosition == 0 && 24150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell firstChildTop == contentTop - mOverscrollDistance) || 24160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (mFirstPosition + childCount == mItemCount && 24170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 24186198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 24196198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 24206198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 24216198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 242279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 24236198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2424f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2425f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2426f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24276198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 243379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 24340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 24360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable == null) { 24370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable = new FlingRunnable(); 24380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final VelocityTracker velocityTracker = mVelocityTracker; 24400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 24410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 24420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 24440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 24450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startOverfling(-initialVelocity); 24460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 24470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startSpringback(); 24480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24540a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 24560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onRelease(); 24570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onRelease(); 24580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 24620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 24734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 24850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell switch (mTouchMode) { 24860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 24870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable == null) { 24880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable = new FlingRunnable(); 24890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startSpringback(); 24910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: 24940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Do nothing - let it play out. 24950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell default: 24980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_REST; 24990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell setPressed(false); 25000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 25010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 25020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView.setPressed(false); 25030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell clearScrollingCache(); 25050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Handler handler = getHandler(); 25070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (handler != null) { 25080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell handler.removeCallbacks(mPendingCheckForLongPress); 25090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mVelocityTracker != null) { 25120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.recycle(); 25130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker = null; 25140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 25170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 25180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onRelease(); 25190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onRelease(); 25200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 25224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 25234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 25244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 25254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 25264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 25274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 25284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 25294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 25304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 25314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 25324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 25334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 25344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 25354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 25364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 25374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell protected void onOverscrolled(int scrollX, int scrollY, 25460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell boolean clampedX, boolean clampedY) { 25470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = scrollY; 25480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (clampedY) { 25500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Velocity is broken by hitting the limit; don't start a fling off of this. 25510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mVelocityTracker != null) { 25520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 25530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell awakenScrollBars(); 25560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell @Override 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 25610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 25620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 25630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mEdgeGlowTop.isFinished()) { 25640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int restoreCount = canvas.save(); 25650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int width = getWidth(); 25660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25675916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell canvas.translate(-width / 2, Math.min(0, scrollY + mFirstPositionDistanceGuess)); 25680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.setSize(width * 2, getHeight()); 25690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop.draw(canvas)) { 25700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 25710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mEdgeGlowBottom.isFinished()) { 25750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int restoreCount = canvas.save(); 25760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int width = getWidth(); 25770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int height = getHeight(); 25780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25795916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell canvas.translate(-width / 2, 25805916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 25810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.rotate(180, width, 0); 25820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.setSize(width * 2, height); 25830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowBottom.draw(canvas)) { 25840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 25850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 25900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 25910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (scrollY != 0) { 25920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Pin to the top/bottom during overscroll 25930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int restoreCount = canvas.save(); 25940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.translate(0, (float) scrollY); 25950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFastScroller.draw(canvas); 25960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 25980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFastScroller.draw(canvas); 25990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 26070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 261779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 26180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 26190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 26200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return true; 26210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 262279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 26234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 26244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 26254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 26264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 262879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 264079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 26414b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 26424b4f40f84e72579417604143e5f42115769649b8Romain Guy } 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 26494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 26504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 26674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 26684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 26694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 26764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 26774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 26784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 26794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 26804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 26814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 26824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 26834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 26844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 26854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 26860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 26874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 26884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 26894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 26904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 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 * Responsible for fling behavior. Use {@link #start(int)} to 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell private final OverScroller mScroller; 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 274979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 27500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller = new OverScroller(getContext()); 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 275379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void startSpringback() { 27700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScroller.springback(0, mScrollY, 0, 0, 0, 0)) { 27710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 27730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 27740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 27750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_REST; 27760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 27790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void startOverfling(int initialVelocity) { 27800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 27810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 27820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 27830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 27850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 27860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 27880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void edgeReached(int delta) { 27890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 2790e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell final int overscrollMode = getOverscrollMode(); 2791e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell if (overscrollMode == OVERSCROLL_ALWAYS || 2792e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell (overscrollMode == OVERSCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 2793e6ffce9f65a1a8f498eb51a993a8cbf5f13a109eAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int vel = (int) mScroller.getCurrVelocity(); 27950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (delta > 0) { 27960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onAbsorb(vel); 27970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 27980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onAbsorb(vel); 27990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 28020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 28030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2808458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2810458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2811458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2812458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 2818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 281979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 282779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 282879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 283079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 283179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 283279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 283379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 283479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 283579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final OverScroller scroller = mScroller; 283879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 283979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 284179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 284279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 284379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 284579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 284679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 284779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 284879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 284979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 285079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 285279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 285379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 285479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 285579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 285679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 285779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 285979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 286079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 286279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 286379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 286479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check to see if we have bumped into the scroll limit 28670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 28680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int oldTop = 0; 28690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 28700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell oldTop = motionView.getTop(); 28710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2873a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell final boolean atEnd = trackMotionScroll(delta, delta); 28740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (atEnd) { 28750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 28760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Tweak the scroll for how far we overshot 28770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 28780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell overscrollBy(0, overshoot, 0, mScrollY, 0, 0, 28790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverflingDistance, false); 28800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell edgeReached(delta); 28820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 28830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2885a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell if (more && !atEnd) { 288679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 288779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 288879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 288979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 289079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 289179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 289279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 289379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 289479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 289579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 289679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 289979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 29020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: { 29030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final OverScroller scroller = mScroller; 29040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (scroller.computeScrollOffset()) { 29050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 29060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int deltaY = scroller.getCurrY() - scrollY; 29070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (overscrollBy(0, deltaY, 0, scrollY, 0, 0, 29080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverflingDistance, false)) { 29090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell startSpringback(); 29100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 29110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 29120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 29130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 29140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 29150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell endFling(); 29160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 29170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 29180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 291979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 292079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 2926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 2927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 2929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 2930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 2931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 2932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 2934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 2935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 2936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 2937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 293852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 2939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 2941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 2942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 2945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 2950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 2951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 2953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 2954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 2967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 2973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 2974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 2975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2982fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 2983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 2984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 2985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 2990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 2991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 2994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2998fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 2999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 3027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 30430b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 30440b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 30450b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 30460b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3058029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3060029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 30647e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3072029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 3073029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3074029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3075029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 30907e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 3099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 31130b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 31140b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 31150b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3117029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3119029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 31237e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3137458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 31477e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 3181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 3182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 3183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 3185458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 3186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 3188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 3192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 3196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 3197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 3198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 3200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 3201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 3202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 3204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.startScroll(distance, duration); 3206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 32176dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 32186dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 32196dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 32206dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 32216dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 32226dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 32236dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 32246dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 32256dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 32266dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 32276dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 32286dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 32296dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 32306dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 32316dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32336dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 3242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3244458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 3247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32755916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell // Update our guesses for where the first and last views are 32765916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell if (firstPosition == 0) { 32775916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mFirstPositionDistanceGuess = firstTop - mListPadding.top; 32785916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } else { 32795916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 32805916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 32815916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell if (firstPosition + childCount == mItemCount) { 32825916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mLastPositionDistanceGuess = lastBottom + mListPadding.bottom; 32835916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } else { 32845916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mLastPositionDistanceGuess += incrementalDeltaY; 32855916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 32865916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell 32870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && incrementalDeltaY >= 0) { 3288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 3289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 32900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return incrementalDeltaY != 0; 3291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && 32940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell incrementalDeltaY <= 0) { 3295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 3296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 32970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return incrementalDeltaY != 0; 3298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3302029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 3303029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 3304029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 3305029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 3308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 3311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 3315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 3318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3343458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3368029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3376029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 33772a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 33782a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 33792a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell positionSelector(getChildAt(childIndex)); 33802a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 3381029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3382029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3385458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3386458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3423ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3424ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3425ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 34554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 34584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 34594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 34604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 34614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 34624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @param y Where the user touched 34634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row closest to y 34644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 34654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell int findClosestMotionRow(int y) { 34664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int childCount = getChildCount(); 34674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (childCount == 0) { 34684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return INVALID_POSITION; 34694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 34714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionRow = findMotionRow(y); 34724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 34734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 371043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 371143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 371243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 371343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 371443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 371543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 371643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 371743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 371843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 371943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 372043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 372143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 372243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 372343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 372443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 372524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 372643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 372743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3731d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 37434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3744b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3750b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 375424443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3757b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3826b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 384283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 38438d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 38448d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 38458d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 384683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 384783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 384883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 384983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 385083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 385183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 3857cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3861b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3866105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 38859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3888b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 3889b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3890b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3891b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3892c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 3893c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 3894c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 3895c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 3896c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 38971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 38981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 38991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 39001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 39011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 39021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 39031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 39041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 39051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 39061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 39081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 39091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 39101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 39111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 39121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 39131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 39141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 39151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 39161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 39171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 39181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 39201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 39221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 39241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 39251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 39261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 39271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 39281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 39291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 39301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 39321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 39341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 39351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 39361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 3937c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 3938c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 3939b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 39400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3941b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 3942b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 3943b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 3944b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3945b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3946b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 3947b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 3948b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 39490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3950b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 39594df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 39604df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 3963b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 3964b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 3965b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 3966b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 3967b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 3968105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 3979d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 401124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 401643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 40251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 40321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 40331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4036c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 40451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 40631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 412652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 412752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 412852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 412952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 413052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 413152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 413252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 413352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 41499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 416013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 41659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 41669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 417513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 417613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 417713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 417813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 417913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 418013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 418113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 418213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 418313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 418413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 418513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 418613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 418713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 418813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 418913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 419052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 419113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 419213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 419313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 419413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 419513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 419613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 419713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 419813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 419913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 420013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 420113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 420213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 420313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 420413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 420513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 420613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 420713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 420813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 420913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 421013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 421113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 421213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 421313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 421413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 421513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 421613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 421713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 421852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 421913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 422013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 422113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 422213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 422352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 422413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 422513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 422613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 422713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 422813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 422913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 423013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 42315916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell private void finishGlows() { 42325916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell if (mEdgeGlowTop != null) { 42335916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mEdgeGlowTop.finish(); 42345916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mEdgeGlowBottom.finish(); 42355916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 42365916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 42375916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell 423813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 42399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 42409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 42419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 42429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 42479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 42509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4261bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 42629bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 42639bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 42649bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42674df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 42684df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 42694df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 42704df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 42714df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 42724df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 4273bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 42744df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 42754df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 42760bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 42770bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 42780bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 42790bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 42800bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 42810bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 42820bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 42830bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 4284bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 42850bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 42860bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4372f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 4373f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 4374f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 4375f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 4376f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4377f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 4378f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 4379f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4380f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 4381f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 4382f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 4383f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 4384f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4385f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 4386f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 4387f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4388f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4389f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4390f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 43910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 44349c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 44369c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 44394df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 45039b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 45049b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 45059b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4510a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4513a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4532a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 453521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy int whichScrap = ((AbsListView.LayoutParams) victim.getLayoutParams()).viewType; 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45399b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 45419b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 45429b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 45439b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4550a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 460252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 460352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 460452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 460552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 460652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 460752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 460852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 460952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 461052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 461152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 461252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 461352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 461452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 461552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 461652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 461752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 461852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 461952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 462052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 462152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 462252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 462352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 462452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 462552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 462652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 462752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 462852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 462952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 463052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 463152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 463252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 463352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 463452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4637